64279460 has 48 divisors (see below), whose sum is σ = 157199616. Its totient is φ = 21620352.

The previous prime is 64279447. The next prime is 64279477. The reversal of 64279460 is 6497246.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3089 + ... + 11751.

It is an arithmetic number, because the mean of its divisors is an integer number (3274992).

Almost surely, 2^64279460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64279460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78599808).

64279460 is an abundant number, since it is smaller than the sum of its proper divisors (92920156).

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

64279460 is a wasteful number, since it uses less digits than its factorization.

64279460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8732 (or 8730 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 64279460 is about 8017.4472246470. The cubic root of 64279460 is about 400.5813629667.

The spelling of 64279460 in words is "sixty-four million, two hundred seventy-nine thousand, four hundred sixty".