2044221615 has 12 divisors (see below), whose sum is σ = 3543317544. Its totient is φ = 1090251504.

The previous prime is 2044221587. The next prime is 2044221637. The reversal of 2044221615 is 5161224402.

2044221615 is a `hidden beast` number, since 2 + 0 + 4 + 42 + 2 + 1 + 615 = 666.

It is not a de Polignac number, because 2044221615 - 2⁶ = 2044221551 is a prime.

It is a super-2 number, since 2×2044221615² = 8357684022466416450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22713529 + ... + 22713618.

It is an arithmetic number, because the mean of its divisors is an integer number (295276462).

Almost surely, 2^2044221615 is an apocalyptic number.

2044221615 is a deficient number, since it is larger than the sum of its proper divisors (1499095929).

2044221615 is a wasteful number, since it uses less digits than its factorization.

2044221615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45427158 (or 45427155 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2044221615 is about 45213.0690730014. The cubic root of 2044221615 is about 1269.1393956641.

The spelling of 2044221615 in words is "two billion, forty-four million, two hundred twenty-one thousand, six hundred fifteen".