20044688 has 20 divisors (see below), whose sum is σ = 38949888. Its totient is φ = 9993120.

The previous prime is 20044679. The next prime is 20044697. The reversal of 20044688 is 88644002.

It is an interprime number because it is at equal distance from previous prime (20044679) and next prime (20044697).

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, 4493 + ... + 7763.

Almost surely, 2^20044688 is an apocalyptic number.

It is an amenable number.

20044688 is a deficient number, since it is larger than the sum of its proper divisors (18905200).

20044688 is a wasteful number, since it uses less digits than its factorization.

20044688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3662 (or 3656 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 20044688 is about 4477.1294374856. The cubic root of 20044688 is about 271.6437810941.

The spelling of 20044688 in words is "twenty million, forty-four thousand, six hundred eighty-eight".