64503424 has 32 divisors (see below), whose sum is σ = 132941700. Its totient is φ = 31137792.

The previous prime is 64503403. The next prime is 64503437. The reversal of 64503424 is 42430546.

It can be written as a sum of positive squares in 2 ways, for example, as 60341824 + 4161600 = 7768^2 + 2040^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 64503392 and 64503401.

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, 4977 + ... + 12400.

Almost surely, 2^64503424 is an apocalyptic number.

64503424 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64503424 is an abundant number, since it is smaller than the sum of its proper divisors (68438276).

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

64503424 is a wasteful number, since it uses less digits than its factorization.

64503424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17420 (or 17408 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 64503424 is about 8031.4023682044. The cubic root of 64503424 is about 401.0460620010.

The spelling of 64503424 in words is "sixty-four million, five hundred three thousand, four hundred twenty-four".