156550840 has 16 divisors (see below), whose sum is σ = 352239480. Its totient is φ = 62620320.

The previous prime is 156550829. The next prime is 156550871. The reversal of 156550840 is 48055651.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 156550796 and 156550805.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1956846 + ... + 1956925.

Almost surely, 2^156550840 is an apocalyptic number.

156550840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156550840 is an abundant number, since it is smaller than the sum of its proper divisors (195688640).

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

156550840 is a wasteful number, since it uses less digits than its factorization.

156550840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913782 (or 3913778 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 156550840 is about 12512.0278132683. The cubic root of 156550840 is about 538.9541256308.

The spelling of 156550840 in words is "one hundred fifty-six million, five hundred fifty thousand, eight hundred forty".