156008640 has 112 divisors (see below), whose sum is σ = 500542560. Its totient is φ = 41164800.

The previous prime is 156008623. The next prime is 156008663. The reversal of 156008640 is 46800651.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 156008598 and 156008607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96156 + ... + 97764.

It is an arithmetic number, because the mean of its divisors is an integer number (4469130).

Almost surely, 2^156008640 is an apocalyptic number.

156008640 is a gapful number since it is divisible by the number (10) 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 156008640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250271280).

156008640 is an abundant number, since it is smaller than the sum of its proper divisors (344533920).

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

156008640 is a wasteful number, since it uses less digits than its factorization.

156008640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 156008640 is about 12490.3418688201. The cubic root of 156008640 is about 538.3311992639.

The spelling of 156008640 in words is "one hundred fifty-six million, eight thousand, six hundred forty".