2397639872 has 14 divisors (see below), whose sum is σ = 4757816748. Its totient is φ = 1198819904.

The previous prime is 2397639869. The next prime is 2397639911. The reversal of 2397639872 is 2789367932.

It is a happy 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 as a sum of consecutive naturals, namely, 18731498 + ... + 18731625.

Almost surely, 2^2397639872 is an apocalyptic number.

It is an amenable number.

2397639872 is a deficient number, since it is larger than the sum of its proper divisors (2360176876).

2397639872 is an equidigital number, since it uses as much as digits as its factorization.

2397639872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37463135 (or 37463125 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 56.

The square root of 2397639872 is about 48965.7009752745. The cubic root of 2397639872 is about 1338.4268819331.

The spelling of 2397639872 in words is "two billion, three hundred ninety-seven million, six hundred thirty-nine thousand, eight hundred seventy-two".