22420624 has 20 divisors (see below), whose sum is σ = 43965936. Its totient is φ = 11074592.

The previous prime is 22420609. The next prime is 22420633. The reversal of 22420624 is 42602422.

It is a junction number, because it is equal to n+sod(n) for n = 22420595 and 22420604.

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, 7114 + ... + 9769.

Almost surely, 2^22420624 is an apocalyptic number.

It is an amenable number.

22420624 is a deficient number, since it is larger than the sum of its proper divisors (21545312).

22420624 is a wasteful number, since it uses less digits than its factorization.

22420624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16974 (or 16968 counting only the distinct ones).

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

The square root of 22420624 is about 4735.0421328643. The cubic root of 22420624 is about 281.9784367262.

The spelling of 22420624 in words is "twenty-two million, four hundred twenty thousand, six hundred twenty-four".