156889860 has 48 divisors (see below), whose sum is σ = 440405952. Its totient is φ = 41731200.

The previous prime is 156889847. The next prime is 156889861. The reversal of 156889860 is 68988651.

It is a super-2 number, since 2×156889860² = 49228856341639200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156889861) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 22155 + ... + 28365.

It is an arithmetic number, because the mean of its divisors is an integer number (9175124).

Almost surely, 2^156889860 is an apocalyptic number.

156889860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156889860 is an abundant number, since it is smaller than the sum of its proper divisors (283516092).

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

156889860 is a wasteful number, since it uses less digits than its factorization.

156889860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6644 (or 6642 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The square root of 156889860 is about 12525.5682505825. The cubic root of 156889860 is about 539.3428906946.

The spelling of 156889860 in words is "one hundred fifty-six million, eight hundred eighty-nine thousand, eight hundred sixty".