2044074640 has 20 divisors (see below), whose sum is σ = 4752473724. Its totient is φ = 817629824.

The previous prime is 2044074631. The next prime is 2044074671. The reversal of 2044074640 is 464704402.

It can be written as a sum of positive squares in 2 ways, for example, as 1294848256 + 749226384 = 35984^2 + 27372^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×2044074640² = 8356482267782259200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12775387 + ... + 12775546.

Almost surely, 2^2044074640 is an apocalyptic number.

2044074640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2044074640 is an abundant number, since it is smaller than the sum of its proper divisors (2708399084).

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

2044074640 is a wasteful number, since it uses less digits than its factorization.

2044074640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25550946 (or 25550940 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 2044074640 is about 45211.4436840940. The cubic root of 2044074640 is about 1269.1089788326.

The spelling of 2044074640 in words is "two billion, forty-four million, seventy-four thousand, six hundred forty".