64465210 has 12 divisors (see below), whose sum is σ = 116083098. Its totient is φ = 25775928.

The previous prime is 64465201. The next prime is 64465223. The reversal of 64465210 is 1256446.

It can be written as a sum of positive squares in only one way, i.e., 58018689 + 6446521 = 7617^2 + 2539^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24121 + ... + 26659.

Almost surely, 2^64465210 is an apocalyptic number.

64465210 is a deficient number, since it is larger than the sum of its proper divisors (51617888).

64465210 is an frugal number, since it uses more digits than its factorization.

64465210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085 (or 2546 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 64465210 is about 8029.0229791675. The cubic root of 64465210 is about 400.9668486264.

Multiplying 64465210 by its product of nonzero digits (5760), we get a square (371319609600 = 609360²).

The spelling of 64465210 in words is "sixty-four million, four hundred sixty-five thousand, two hundred ten".