162440256 has 56 divisors (see below), whose sum is σ = 468867744. Its totient is φ = 49223680.

The previous prime is 162440251. The next prime is 162440263. The reversal of 162440256 is 652044261.

It is not an unprimeable number, because it can be changed into a prime (162440251) by changing a digit.

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, 36345 + ... + 40568.

Almost surely, 2^162440256 is an apocalyptic number.

162440256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

162440256 is an abundant number, since it is smaller than the sum of its proper divisors (306427488).

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

162440256 is a wasteful number, since it uses less digits than its factorization.

162440256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76939 (or 76929 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 162440256 is about 12745.2052160803. The cubic root of 162440256 is about 545.6295572547.

The spelling of 162440256 in words is "one hundred sixty-two million, four hundred forty thousand, two hundred fifty-six".