64427268 has 24 divisors (see below), whose sum is σ = 151738272. Its totient is φ = 21274624.

The previous prime is 64427239. The next prime is 64427329. The reversal of 64427268 is 86272446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23805 + ... + 26372.

It is an arithmetic number, because the mean of its divisors is an integer number (6322428).

Almost surely, 2^64427268 is an apocalyptic number.

It is an amenable number.

64427268 is an abundant number, since it is smaller than the sum of its proper divisors (87311004).

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

64427268 is a wasteful number, since it uses less digits than its factorization.

64427268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50291 (or 50289 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 64427268 is about 8026.6598283470. The cubic root of 64427268 is about 400.8881681006. Note that the first 3 decimals are identical.

The spelling of 64427268 in words is "sixty-four million, four hundred twenty-seven thousand, two hundred sixty-eight".