157899280 has 80 divisors (see below), whose sum is σ = 457720704. Its totient is φ = 49213440.

The previous prime is 157899277. The next prime is 157899299. The reversal of 157899280 is 82998751.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6657 + ... + 18976.

Almost surely, 2^157899280 is an apocalyptic number.

157899280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157899280 is an abundant number, since it is smaller than the sum of its proper divisors (299821424).

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

157899280 is a wasteful number, since it uses less digits than its factorization.

157899280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25664 (or 25658 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 49.

The square root of 157899280 is about 12565.7980247973. The cubic root of 157899280 is about 540.4971188057.

The spelling of 157899280 in words is "one hundred fifty-seven million, eight hundred ninety-nine thousand, two hundred eighty".