2044121856 has 72 divisors (see below), whose sum is σ = 6217553664. Its totient is φ = 584033280.

The previous prime is 2044121851. The next prime is 2044121857. The reversal of 2044121856 is 6581214402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2044121851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184740 + ... + 195491.

It is an arithmetic number, because the mean of its divisors is an integer number (86354912).

Almost surely, 2^2044121856 is an apocalyptic number.

It is an amenable number.

2044121856 is an abundant number, since it is smaller than the sum of its proper divisors (4173431808).

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

2044121856 is an equidigital number, since it uses as much as digits as its factorization.

2044121856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380257 (or 380243 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2044121856 is about 45211.9658497615. The cubic root of 2044121856 is about 1269.1187504568.

The spelling of 2044121856 in words is "two billion, forty-four million, one hundred twenty-one thousand, eight hundred fifty-six".