422665624 has 16 divisors (see below), whose sum is σ = 792862200. Its totient is φ = 211235712.

The previous prime is 422665613. The next prime is 422665643. The reversal of 422665624 is 426566224.

It is a super-2 number, since 2×422665624² = 357292459422618752, 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 3 ways as a sum of consecutive naturals, for example, 8407 + ... + 30265.

Almost surely, 2^422665624 is an apocalyptic number.

It is an amenable number.

422665624 is a deficient number, since it is larger than the sum of its proper divisors (370196576).

422665624 is a wasteful number, since it uses less digits than its factorization.

422665624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24282 (or 24278 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 422665624 is about 20558.8332353760. The cubic root of 422665624 is about 750.4682255515.

The spelling of 422665624 in words is "four hundred twenty-two million, six hundred sixty-five thousand, six hundred twenty-four".