20044624 has 20 divisors (see below), whose sum is σ = 39216736. Its totient is φ = 9924192.

The previous prime is 20044589. The next prime is 20044627. The reversal of 20044624 is 42644002.

It is a junction number, because it is equal to n+sod(n) for n = 20044595 and 20044604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4434 + ... + 7729.

Almost surely, 2^20044624 is an apocalyptic number.

It is an amenable number.

20044624 is a deficient number, since it is larger than the sum of its proper divisors (19172112).

20044624 is a wasteful number, since it uses less digits than its factorization.

20044624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274 (or 12268 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 20044624 is about 4477.1222900430. The cubic root of 20044624 is about 271.6434919864.

Adding to 20044624 its reverse (42644002), we get a palindrome (62688626).

The spelling of 20044624 in words is "twenty million, forty-four thousand, six hundred twenty-four".