156404256 has 24 divisors (see below), whose sum is σ = 410561424. Its totient is φ = 52134720.

The previous prime is 156404189. The next prime is 156404263. The reversal of 156404256 is 652404651.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814510 + ... + 814701.

It is an arithmetic number, because the mean of its divisors is an integer number (17106726).

Almost surely, 2^156404256 is an apocalyptic number.

156404256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

156404256 is an abundant number, since it is smaller than the sum of its proper divisors (254157168).

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

156404256 is a wasteful number, since it uses less digits than its factorization.

156404256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629224 (or 1629216 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 156404256 is about 12506.1687178768. The cubic root of 156404256 is about 538.7858592669.

The spelling of 156404256 in words is "one hundred fifty-six million, four hundred four thousand, two hundred fifty-six".