744664564 has 36 divisors (see below), whose sum is σ = 1518242880. Its totient is φ = 318654000.

The previous prime is 744664517. The next prime is 744664573. The reversal of 744664564 is 465466447.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144667 + ... + 149725.

Almost surely, 2^744664564 is an apocalyptic number.

It is an amenable number.

744664564 is an abundant number, since it is smaller than the sum of its proper divisors (773578316).

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

744664564 is a wasteful number, since it uses less digits than its factorization.

744664564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5828 (or 5819 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 46.

The square root of 744664564 is about 27288.5427240078. The cubic root of 744664564 is about 906.4006937423.

It can be divided in two parts, 7446 and 64564, that added together give a triangular number (72010 = T₃₇₉).

The spelling of 744664564 in words is "seven hundred forty-four million, six hundred sixty-four thousand, five hundred sixty-four".