156904704 has 216 divisors, whose sum is σ = 508906944. Its totient is φ = 46080000.

The previous prime is 156904697. The next prime is 156904757. The reversal of 156904704 is 407409651.

It is a super-2 number, since 2×156904704² = 49238172274655232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1039029 + ... + 1039179.

Almost surely, 2^156904704 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 156904704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254453472).

156904704 is an abundant number, since it is smaller than the sum of its proper divisors (352002240).

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

156904704 is a wasteful number, since it uses less digits than its factorization.

156904704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 156904704 is about 12526.1607845341. The cubic root of 156904704 is about 539.3598999804.

The spelling of 156904704 in words is "one hundred fifty-six million, nine hundred four thousand, seven hundred four".