157842320 has 40 divisors (see below), whose sum is σ = 367756224. Its totient is φ = 63004032.

The previous prime is 157842283. The next prime is 157842341. The reversal of 157842320 is 23248751.

It is a tau number, because it is divible by the number of its divisors (40).

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, 41957 + ... + 45563.

Almost surely, 2^157842320 is an apocalyptic number.

157842320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157842320 is an abundant number, since it is smaller than the sum of its proper divisors (209913904).

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

157842320 is a wasteful number, since it uses less digits than its factorization.

157842320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167 (or 4161 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 157842320 is about 12563.5313506991. The cubic root of 157842320 is about 540.4321186812.

The spelling of 157842320 in words is "one hundred fifty-seven million, eight hundred forty-two thousand, three hundred twenty".