157079920 has 40 divisors (see below), whose sum is σ = 367101504. Its totient is φ = 62506752.

The previous prime is 157079917. The next prime is 157079971. The reversal of 157079920 is 29970751.

157079920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10777 + ... + 20743.

Almost surely, 2^157079920 is an apocalyptic number.

157079920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157079920 is an abundant number, since it is smaller than the sum of its proper divisors (210021584).

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

157079920 is a wasteful number, since it uses less digits than its factorization.

157079920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10177 (or 10171 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 157079920 is about 12533.1528355797. The cubic root of 157079920 is about 539.5605936197.

The spelling of 157079920 in words is "one hundred fifty-seven million, seventy-nine thousand, nine hundred twenty".