64662432 has 24 divisors (see below), whose sum is σ = 169739136. Its totient is φ = 21554112.

The previous prime is 64662419. The next prime is 64662439. The reversal of 64662432 is 23426646.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×64662432² = 8362460224309248, 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 = 64662393 and 64662402.

It is not an unprimeable number, because it can be changed into a prime (64662439) 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, 336688 + ... + 336879.

It is an arithmetic number, because the mean of its divisors is an integer number (7072464).

Almost surely, 2^64662432 is an apocalyptic number.

It is an amenable number.

64662432 is an abundant number, since it is smaller than the sum of its proper divisors (105076704).

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

64662432 is a wasteful number, since it uses less digits than its factorization.

64662432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673580 (or 673572 counting only the distinct ones).

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

The square root of 64662432 is about 8041.2954180281. The cubic root of 64662432 is about 401.3753323989.

The spelling of 64662432 in words is "sixty-four million, six hundred sixty-two thousand, four hundred thirty-two".