744660864 has 192 divisors, whose sum is σ = 2255526000. Its totient is φ = 244518912.

The previous prime is 744660823. The next prime is 744660883. The reversal of 744660864 is 468066447.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2768122 + ... + 2768390.

Almost surely, 2^744660864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 744660864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1127763000).

744660864 is an abundant number, since it is smaller than the sum of its proper divisors (1510865136).

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

744660864 is an equidigital number, since it uses as much as digits as its factorization.

744660864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The square root of 744660864 is about 27288.4749299040. The cubic root of 744660864 is about 906.3991925348.

The spelling of 744660864 in words is "seven hundred forty-four million, six hundred sixty thousand, eight hundred sixty-four".