156939828 has 24 divisors (see below), whose sum is σ = 367731840. Its totient is φ = 52093440.

The previous prime is 156939779. The next prime is 156939859. The reversal of 156939828 is 828939651.

It is a happy number.

156939828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156939828² = 49260219225339168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24493 + ... + 30228.

It is an arithmetic number, because the mean of its divisors is an integer number (15322160).

Almost surely, 2^156939828 is an apocalyptic number.

It is an amenable number.

156939828 is an abundant number, since it is smaller than the sum of its proper divisors (210792012).

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

156939828 is a wasteful number, since it uses less digits than its factorization.

156939828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54967 (or 54965 counting only the distinct ones).

The product of its digits is 933120, while the sum is 51.

The square root of 156939828 is about 12527.5627318326. The cubic root of 156939828 is about 539.4001432262.

The spelling of 156939828 in words is "one hundred fifty-six million, nine hundred thirty-nine thousand, eight hundred twenty-eight".