156397472 has 48 divisors (see below), whose sum is σ = 383890752. Its totient is φ = 60933120.

The previous prime is 156397469. The next prime is 156397487. The reversal of 156397472 is 274793651.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29273 + ... + 34200.

It is an arithmetic number, because the mean of its divisors is an integer number (7997724).

Almost surely, 2^156397472 is an apocalyptic number.

It is an amenable number.

156397472 is an abundant number, since it is smaller than the sum of its proper divisors (227493280).

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

156397472 is a wasteful number, since it uses less digits than its factorization.

156397472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63501 (or 63493 counting only the distinct ones).

The product of its digits is 317520, while the sum is 44.

The square root of 156397472 is about 12505.8974887850. The cubic root of 156397472 is about 538.7780692485.

The spelling of 156397472 in words is "one hundred fifty-six million, three hundred ninety-seven thousand, four hundred seventy-two".