157023428 has 24 divisors (see below), whose sum is σ = 281350272. Its totient is φ = 76646304.

The previous prime is 157023413. The next prime is 157023431. The reversal of 157023428 is 824320751.

It is a junction number, because it is equal to n+sod(n) for n = 157023394 and 157023403.

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, 97526 + ... + 99122.

It is an arithmetic number, because the mean of its divisors is an integer number (11722928).

Almost surely, 2^157023428 is an apocalyptic number.

It is an amenable number.

157023428 is a deficient number, since it is larger than the sum of its proper divisors (124326844).

157023428 is a wasteful number, since it uses less digits than its factorization.

157023428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171 (or 2169 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 157023428 is about 12530.8989302444. The cubic root of 157023428 is about 539.4959035948.

The spelling of 157023428 in words is "one hundred fifty-seven million, twenty-three thousand, four hundred twenty-eight".