64339460 has 24 divisors (see below), whose sum is σ = 135393216. Its totient is φ = 25682400.

The previous prime is 64339399. The next prime is 64339469. The reversal of 64339460 is 6493346.

It is a happy number.

It is a super-2 number, since 2×64339460² = 8279132226183200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64339460.

It is not an unprimeable number, because it can be changed into a prime (64339469) 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, 7385 + ... + 13535.

It is an arithmetic number, because the mean of its divisors is an integer number (5641384).

Almost surely, 2^64339460 is an apocalyptic number.

It is an amenable number.

64339460 is an abundant number, since it is smaller than the sum of its proper divisors (71053756).

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

64339460 is a wasteful number, since it uses less digits than its factorization.

64339460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6683 (or 6681 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 64339460 is about 8021.1881912844. The cubic root of 64339460 is about 400.7059616457.

The spelling of 64339460 in words is "sixty-four million, three hundred thirty-nine thousand, four hundred sixty".