156320428 has 24 divisors (see below), whose sum is σ = 299229840. Its totient is φ = 70864320.

The previous prime is 156320407. The next prime is 156320453. The reversal of 156320428 is 824023651.

156320428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 156320428.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12550 + ... + 21682.

It is an arithmetic number, because the mean of its divisors is an integer number (12467910).

Almost surely, 2^156320428 is an apocalyptic number.

It is an amenable number.

156320428 is a deficient number, since it is larger than the sum of its proper divisors (142909412).

156320428 is a wasteful number, since it uses less digits than its factorization.

156320428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9537 (or 9535 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 156320428 is about 12502.8168026249. The cubic root of 156320428 is about 538.6895843665.

The spelling of 156320428 in words is "one hundred fifty-six million, three hundred twenty thousand, four hundred twenty-eight".