2157372264 has 32 divisors (see below), whose sum is σ = 5518861920. Its totient is φ = 702399936.

The previous prime is 2157372257. The next prime is 2157372281. The reversal of 2157372264 is 4622737512.

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, 1044207 + ... + 1046270.

It is an arithmetic number, because the mean of its divisors is an integer number (172464435).

Almost surely, 2^2157372264 is an apocalyptic number.

2157372264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2157372264 is an abundant number, since it is smaller than the sum of its proper divisors (3361489656).

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

2157372264 is a wasteful number, since it uses less digits than its factorization.

2157372264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090529 (or 2090525 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 2157372264 is about 46447.5216131065. The cubic root of 2157372264 is about 1292.1364081967.

The spelling of 2157372264 in words is "two billion, one hundred fifty-seven million, three hundred seventy-two thousand, two hundred sixty-four".