157982392 has 8 divisors (see below), whose sum is σ = 296217000. Its totient is φ = 78991192.

The previous prime is 157982381. The next prime is 157982399. The reversal of 157982392 is 293289751.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157982399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9873892 + ... + 9873907.

It is an arithmetic number, because the mean of its divisors is an integer number (37027125).

Almost surely, 2^157982392 is an apocalyptic number.

It is an amenable number.

157982392 is a deficient number, since it is larger than the sum of its proper divisors (138234608).

157982392 is a wasteful number, since it uses less digits than its factorization.

157982392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19747805 (or 19747801 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 157982392 is about 12569.1046618285. The cubic root of 157982392 is about 540.5919343471.

The spelling of 157982392 in words is "one hundred fifty-seven million, nine hundred eighty-two thousand, three hundred ninety-two".