157840580 has 24 divisors (see below), whose sum is σ = 350963928. Its totient is φ = 59422208.

The previous prime is 157840549. The next prime is 157840601. The reversal of 157840580 is 85048751.

It can be written as a sum of positive squares in 4 ways, for example, as 30647296 + 127193284 = 5536^2 + 11278^2 .

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, 231779 + ... + 232458.

It is an arithmetic number, because the mean of its divisors is an integer number (14623497).

Almost surely, 2^157840580 is an apocalyptic number.

157840580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157840580 is an abundant number, since it is smaller than the sum of its proper divisors (193123348).

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

157840580 is a wasteful number, since it uses less digits than its factorization.

157840580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464263 (or 464261 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 157840580 is about 12563.4621024620. The cubic root of 157840580 is about 540.4301328273.

The spelling of 157840580 in words is "one hundred fifty-seven million, eight hundred forty thousand, five hundred eighty".