157858332 has 24 divisors (see below), whose sum is σ = 376903296. Its totient is φ = 51395568.

The previous prime is 157858303. The next prime is 157858369. The reversal of 157858332 is 233858751.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152448 + ... + 153479.

It is an arithmetic number, because the mean of its divisors is an integer number (15704304).

Almost surely, 2^157858332 is an apocalyptic number.

157858332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157858332 is an abundant number, since it is smaller than the sum of its proper divisors (219044964).

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

157858332 is a wasteful number, since it uses less digits than its factorization.

157858332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305977 (or 305975 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 157858332 is about 12564.1685757554. The cubic root of 157858332 is about 540.4503924168.

The spelling of 157858332 in words is "one hundred fifty-seven million, eight hundred fifty-eight thousand, three hundred thirty-two".