157324320 has 72 divisors (see below), whose sum is σ = 536874156. Its totient is φ = 41952768.

The previous prime is 157324309. The next prime is 157324337. The reversal of 157324320 is 23423751.

157324320 is a `hidden beast` number, since 15 + 7 + 324 + 320 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 154853136 + 2471184 = 12444^2 + 1572^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53187 + ... + 56066.

Almost surely, 2^157324320 is an apocalyptic number.

157324320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157324320 is an abundant number, since it is smaller than the sum of its proper divisors (379549836).

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

157324320 is a wasteful number, since it uses less digits than its factorization.

157324320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109274 (or 109263 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 157324320 is about 12542.8991863923. The cubic root of 157324320 is about 539.8402819823.

The spelling of 157324320 in words is "one hundred fifty-seven million, three hundred twenty-four thousand, three hundred twenty".