157798872 has 96 divisors (see below), whose sum is σ = 532846080. Its totient is φ = 40985280.

The previous prime is 157798843. The next prime is 157798937. The reversal of 157798872 is 278897751.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8688 + ... + 19775.

It is an arithmetic number, because the mean of its divisors is an integer number (5550480).

Almost surely, 2^157798872 is an apocalyptic number.

157798872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157798872 is an abundant number, since it is smaller than the sum of its proper divisors (375047208).

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

157798872 is a wasteful number, since it uses less digits than its factorization.

157798872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28493 (or 28486 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 54.

The square root of 157798872 is about 12561.8021000173. The cubic root of 157798872 is about 540.3825273137.

The spelling of 157798872 in words is "one hundred fifty-seven million, seven hundred ninety-eight thousand, eight hundred seventy-two".