157399632 has 80 divisors (see below), whose sum is σ = 486566080. Its totient is φ = 48428928.

The previous prime is 157399579. The next prime is 157399633. The reversal of 157399632 is 236993751.

157399632 is a `hidden beast` number, since 1 + 5 + 7 + 3 + 9 + 9 + 632 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157399633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8398 + ... + 19629.

It is an arithmetic number, because the mean of its divisors is an integer number (6082076).

Almost surely, 2^157399632 is an apocalyptic number.

157399632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157399632 is an abundant number, since it is smaller than the sum of its proper divisors (329166448).

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

157399632 is a wasteful number, since it uses less digits than its factorization.

157399632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28057 (or 28045 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 157399632 is about 12545.9010039136. The cubic root of 157399632 is about 539.9264097248.

The spelling of 157399632 in words is "one hundred fifty-seven million, three hundred ninety-nine thousand, six hundred thirty-two".