64261268 has 36 divisors (see below), whose sum is σ = 121574880. Its totient is φ = 29638080.

The previous prime is 64261261. The next prime is 64261273. The reversal of 64261268 is 86216246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64261261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127505 + ... + 128007.

It is an arithmetic number, because the mean of its divisors is an integer number (3377080).

Almost surely, 2^64261268 is an apocalyptic number.

It is an amenable number.

64261268 is a deficient number, since it is larger than the sum of its proper divisors (57313612).

64261268 is a wasteful number, since it uses less digits than its factorization.

64261268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 565 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 64261268 is about 8016.3126186545. The cubic root of 64261268 is about 400.5435693297.

The spelling of 64261268 in words is "sixty-four million, two hundred sixty-one thousand, two hundred sixty-eight".