64504332 has 18 divisors (see below), whose sum is σ = 163052708. Its totient is φ = 21501432.

The previous prime is 64504313. The next prime is 64504337. The reversal of 64504332 is 23340546.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 64504296 and 64504305.

It is not an unprimeable number, because it can be changed into a prime (64504337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 895858 + ... + 895929.

Almost surely, 2^64504332 is an apocalyptic number.

It is an amenable number.

64504332 is an abundant number, since it is smaller than the sum of its proper divisors (98548376).

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

64504332 is a wasteful number, since it uses less digits than its factorization.

64504332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791797 (or 1791792 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 64504332 is about 8031.4588961159. The cubic root of 64504332 is about 401.0479438036.

Adding to 64504332 its reverse (23340546), we get a palindrome (87844878).

The spelling of 64504332 in words is "sixty-four million, five hundred four thousand, three hundred thirty-two".