157638762 has 24 divisors (see below), whose sum is σ = 347152260. Its totient is φ = 51684480.

The previous prime is 157638721. The next prime is 157638769. The reversal of 157638762 is 267836751.

157638762 is a `hidden beast` number, since 1 + 5 + 7 + 638 + 7 + 6 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 119705481 + 37933281 = 10941^2 + 6159^2 .

It is not an unprimeable number, because it can be changed into a prime (157638769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70687 + ... + 72882.

Almost surely, 2^157638762 is an apocalyptic number.

157638762 is an abundant number, since it is smaller than the sum of its proper divisors (189513498).

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

157638762 is a wasteful number, since it uses less digits than its factorization.

157638762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143638 (or 143635 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 157638762 is about 12555.4275912850. The cubic root of 157638762 is about 540.1996998016.

The spelling of 157638762 in words is "one hundred fifty-seven million, six hundred thirty-eight thousand, seven hundred sixty-two".