423624664 has 16 divisors (see below), whose sum is σ = 795427200. Its totient is φ = 211510752.

The previous prime is 423624659. The next prime is 423624671. The reversal of 423624664 is 466426324.

It is a super-2 number, since 2×423624664² = 358915711898225792, 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, 31672 + ... + 43015.

It is an arithmetic number, because the mean of its divisors is an integer number (49714200).

Almost surely, 2^423624664 is an apocalyptic number.

It is an amenable number.

423624664 is a deficient number, since it is larger than the sum of its proper divisors (371802536).

423624664 is a wasteful number, since it uses less digits than its factorization.

423624664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75402 (or 75398 counting only the distinct ones).

The product of its digits is 165888, while the sum is 37.

The square root of 423624664 is about 20582.1443003396. The cubic root of 423624664 is about 751.0354078423.

It can be divided in two parts, 4236 and 24664, that added together give a square (28900 = 170²).

The spelling of 423624664 in words is "four hundred twenty-three million, six hundred twenty-four thousand, six hundred sixty-four".