157292020 has 24 divisors (see below), whose sum is σ = 332423784. Its totient is φ = 62514816.

The previous prime is 157292017. The next prime is 157292039. The reversal of 157292020 is 20292751.

It can be written as a sum of positive squares in 4 ways, for example, as 992016 + 156300004 = 996^2 + 12502^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 157292020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21907 + ... + 28186.

It is an arithmetic number, because the mean of its divisors is an integer number (13850991).

Almost surely, 2^157292020 is an apocalyptic number.

157292020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157292020 is an abundant number, since it is smaller than the sum of its proper divisors (175131764).

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

157292020 is a wasteful number, since it uses less digits than its factorization.

157292020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50259 (or 50257 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 157292020 is about 12541.6115391922. The cubic root of 157292020 is about 539.8033348772.

The spelling of 157292020 in words is "one hundred fifty-seven million, two hundred ninety-two thousand, twenty".