157690370 has 32 divisors (see below), whose sum is σ = 291868272. Its totient is φ = 61315072.

The previous prime is 157690319. The next prime is 157690381. The reversal of 157690370 is 73096751.

It can be written as a sum of positive squares in 8 ways, for example, as 15437041 + 142253329 = 3929^2 + 11927^2 .

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, 58574 + ... + 61206.

Almost surely, 2^157690370 is an apocalyptic number.

157690370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157690370 is a deficient number, since it is larger than the sum of its proper divisors (134177902).

157690370 is a wasteful number, since it uses less digits than its factorization.

157690370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 157690370 is about 12557.4826298904. The cubic root of 157690370 is about 540.2586438159.

The spelling of 157690370 in words is "one hundred fifty-seven million, six hundred ninety thousand, three hundred seventy".