157992472 has 16 divisors (see below), whose sum is σ = 323166600. Its totient is φ = 71814720.

The previous prime is 157992463. The next prime is 157992473. The reversal of 157992472 is 274299751.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157992473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897597 + ... + 897772.

Almost surely, 2^157992472 is an apocalyptic number.

It is an amenable number.

157992472 is an abundant number, since it is smaller than the sum of its proper divisors (165174128).

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

157992472 is a wasteful number, since it uses less digits than its factorization.

157992472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795386 (or 1795382 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The square root of 157992472 is about 12569.5056386478. The cubic root of 157992472 is about 540.6034315162.

The spelling of 157992472 in words is "one hundred fifty-seven million, nine hundred ninety-two thousand, four hundred seventy-two".