64375494 has 32 divisors (see below), whose sum is σ = 132765696. Its totient is φ = 20796480.

The previous prime is 64375489. The next prime is 64375511. The reversal of 64375494 is 49457346.

It is a Curzon number.

It is a congruent number.

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, 40299 + ... + 41865.

It is an arithmetic number, because the mean of its divisors is an integer number (4148928).

Almost surely, 2^64375494 is an apocalyptic number.

64375494 is an abundant number, since it is smaller than the sum of its proper divisors (68390202).

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

64375494 is a wasteful number, since it uses less digits than its factorization.

64375494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780.

The product of its digits is 362880, while the sum is 42.

The square root of 64375494 is about 8023.4340528230. The cubic root of 64375494 is about 400.7807542322.

The spelling of 64375494 in words is "sixty-four million, three hundred seventy-five thousand, four hundred ninety-four".