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4001340 = 2235721361
BaseRepresentation
bin1111010000111000111100
321112021210210
433100320330
52011020330
6221432420
746003500
oct17207074
97467723
104001340
1122932a2
12140b710
13aa1375
14762300
155408b0
hex3d0e3c

4001340 has 72 divisors (see below), whose sum is σ = 13042512. Its totient is φ = 913920.

The previous prime is 4001339. The next prime is 4001357. The reversal of 4001340 is 431004.

Adding to 4001340 its reverse (431004), we get a palindrome (4432344).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2260 + ... + 3620.

It is an arithmetic number, because the mean of its divisors is an integer number (181146).

Almost surely, 24001340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4001340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6521256).

4001340 is an abundant number, since it is smaller than the sum of its proper divisors (9041172).

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

4001340 is a wasteful number, since it uses less digits than its factorization.

4001340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 4001340 is about 2000.3349719484. The cubic root of 4001340 is about 158.7578291962.

The spelling of 4001340 in words is "four million, one thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 420 490 588 735 980 1361 1470 2722 2940 4083 5444 6805 8166 9527 13610 16332 19054 20415 27220 28581 38108 40830 47635 57162 66689 81660 95270 114324 133378 142905 190540 200067 266756 285810 333445 400134 571620 666890 800268 1000335 1333780 2000670 4001340