64406264 has 32 divisors (see below), whose sum is σ = 130448640. Its totient is φ = 29635200.

The previous prime is 64406263. The next prime is 64406291. The reversal of 64406264 is 46260446.

It is a self number, because there is not a number n which added to its sum of digits gives 64406264.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64406263) 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, 43049 + ... + 44519.

It is an arithmetic number, because the mean of its divisors is an integer number (4076520).

Almost surely, 2^64406264 is an apocalyptic number.

It is an amenable number.

64406264 is an abundant number, since it is smaller than the sum of its proper divisors (66042376).

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

64406264 is a wasteful number, since it uses less digits than its factorization.

64406264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1907 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 64406264 is about 8025.3513318733. The cubic root of 64406264 is about 400.8445987107.

The spelling of 64406264 in words is "sixty-four million, four hundred six thousand, two hundred sixty-four".