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378470940 = 223531673037
BaseRepresentation
bin10110100011110…
…000001000011100
3222101011022112020
4112203300020130
51233342032230
6101315540140
712243643551
oct2643601034
9871138466
10378470940
11184700901
12a68ba650
1360544203
143839ca28
152335e810
hex168f021c

378470940 has 96 divisors (see below), whose sum is σ = 1110595584. Its totient is φ = 96180480.

The previous prime is 378470927. The next prime is 378470969. The reversal of 378470940 is 49074873.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 378470892 and 378470901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123102 + ... + 126138.

It is an arithmetic number, because the mean of its divisors is an integer number (11568704).

Almost surely, 2378470940 is an apocalyptic number.

378470940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378470940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555297792).

378470940 is an abundant number, since it is smaller than the sum of its proper divisors (732124644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378470940 is a wasteful number, since it uses less digits than its factorization.

378470940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147 (or 3145 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 378470940 is about 19454.3295952341. The cubic root of 378470940 is about 723.3428277592.

The spelling of 378470940 in words is "three hundred seventy-eight million, four hundred seventy thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 67 93 124 134 155 186 201 268 310 335 372 402 465 620 670 804 930 1005 1340 1860 2010 2077 3037 4020 4154 6074 6231 8308 9111 10385 12148 12462 15185 18222 20770 24924 30370 31155 36444 41540 45555 60740 62310 91110 94147 124620 182220 188294 203479 282441 376588 406958 470735 564882 610437 813916 941470 1017395 1129764 1220874 1412205 1882940 2034790 2441748 2824410 3052185 4069580 5648820 6104370 6307849 12208740 12615698 18923547 25231396 31539245 37847094 63078490 75694188 94617735 126156980 189235470 378470940