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361407040 = 2657115907
BaseRepresentation
bin10101100010101…
…010001001000000
3221012001101020221
4111202222021000
51220010011130
655510112424
711645623561
oct2542521100
9835041227
10361407040
11176006505
12a104b714
1359b4b327
1435dda168
1521add87a
hex158aa240

361407040 has 56 divisors (see below), whose sum is σ = 872776512. Its totient is φ = 142517760.

The previous prime is 361407031. The next prime is 361407041. The reversal of 361407040 is 40704163.

361407040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 361406996 and 361407014.

It is not an unprimeable number, because it can be changed into a prime (361407041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14767 + ... + 30673.

Almost surely, 2361407040 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 361407040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436388256).

361407040 is an abundant number, since it is smaller than the sum of its proper divisors (511369472).

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

361407040 is a wasteful number, since it uses less digits than its factorization.

361407040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15995 (or 15985 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 361407040 is about 19010.7085612294. The cubic root of 361407040 is about 712.3042507295.

The spelling of 361407040 in words is "three hundred sixty-one million, four hundred seven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 71 80 142 160 284 320 355 568 710 1136 1420 2272 2840 4544 5680 11360 15907 22720 31814 63628 79535 127256 159070 254512 318140 509024 636280 1018048 1129397 1272560 2258794 2545120 4517588 5090240 5646985 9035176 11293970 18070352 22587940 36140704 45175880 72281408 90351760 180703520 361407040