2122379904 has 64 divisors (see below), whose sum is σ = 5721783840. Its totient is φ = 696892416.

The previous prime is 2122379887. The next prime is 2122379923. The reversal of 2122379904 is 4099732212.

It is a tau number, because it is divible by the number of its divisors (64).

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, 15519 + ... + 66974.

Almost surely, 2^2122379904 is an apocalyptic number.

2122379904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2122379904 is an abundant number, since it is smaller than the sum of its proper divisors (3599403936).

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

2122379904 is an equidigital number, since it uses as much as digits as its factorization.

2122379904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82577 (or 82565 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 2122379904 is about 46069.2945897807. The cubic root of 2122379904 is about 1285.1121854948.

The spelling of 2122379904 in words is "two billion, one hundred twenty-two million, three hundred seventy-nine thousand, nine hundred four".