64624632 has 32 divisors (see below), whose sum is σ = 162246480. Its totient is φ = 21450240.

The previous prime is 64624631. The next prime is 64624639. The reversal of 64624632 is 23642646.

It is a super-2 number, since 2×64624632² = 8352686122270848, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 64624593 and 64624602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64624631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198 + ... + 11370.

Almost surely, 2^64624632 is an apocalyptic number.

It is an amenable number.

64624632 is an abundant number, since it is smaller than the sum of its proper divisors (97621848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64624632 is a wasteful number, since it uses less digits than its factorization.

64624632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11423 (or 11419 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

The square root of 64624632 is about 8038.9447068630. The cubic root of 64624632 is about 401.2971059107.

It can be divided in two parts, 64624 and 632, that added together give a palindrome (65256).

The spelling of 64624632 in words is "sixty-four million, six hundred twenty-four thousand, six hundred thirty-two".