157800928 has 96 divisors (see below), whose sum is σ = 342921600. Its totient is φ = 71225856.

The previous prime is 157800917. The next prime is 157800931. The reversal of 157800928 is 829008751.

It is a super-2 number, since 2×157800928² = 49802265755322368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1901175 + ... + 1901257.

It is an arithmetic number, because the mean of its divisors is an integer number (3572100).

Almost surely, 2^157800928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157800928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171460800).

157800928 is an abundant number, since it is smaller than the sum of its proper divisors (185120672).

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

157800928 is a wasteful number, since it uses less digits than its factorization.

157800928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 157800928 is about 12561.8839351428. The cubic root of 157800928 is about 540.3848742288.

The spelling of 157800928 in words is "one hundred fifty-seven million, eight hundred thousand, nine hundred twenty-eight".