156886380 has 72 divisors (see below), whose sum is σ = 543877152. Its totient is φ = 35859456.

The previous prime is 156886361. The next prime is 156886393. The reversal of 156886380 is 83688651.

156886380 is a `hidden beast` number, since 1 + 5 + 6 + 8 + 8 + 638 + 0 = 666.

It is a super-2 number, since 2×156886380² = 49226672459008800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60997 + ... + 63516.

Almost surely, 2^156886380 is an apocalyptic number.

156886380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156886380 is an abundant number, since it is smaller than the sum of its proper divisors (386990772).

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

156886380 is a wasteful number, since it uses less digits than its factorization.

156886380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124535 (or 124530 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 156886380 is about 12525.4293339590. The cubic root of 156886380 is about 539.3389029138.

The spelling of 156886380 in words is "one hundred fifty-six million, eight hundred eighty-six thousand, three hundred eighty".