64744474 has 32 divisors (see below), whose sum is σ = 102643200. Its totient is φ = 30602880.

The previous prime is 64744411. The next prime is 64744489. The reversal of 64744474 is 47444746.

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, 593932 + ... + 594040.

It is an arithmetic number, because the mean of its divisors is an integer number (3207600).

Almost surely, 2^64744474 is an apocalyptic number.

64744474 is a deficient number, since it is larger than the sum of its proper divisors (37898726).

64744474 is a wasteful number, since it uses less digits than its factorization.

64744474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318.

The product of its digits is 301056, while the sum is 40.

The square root of 64744474 is about 8046.3950934564. The cubic root of 64744474 is about 401.5450121601.

The spelling of 64744474 in words is "sixty-four million, seven hundred forty-four thousand, four hundred seventy-four".