732644864 has 240 divisors, whose sum is σ = 1889276400. Its totient is φ = 281788416.

The previous prime is 732644851. The next prime is 732644873. The reversal of 732644864 is 468446237.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13823462 + ... + 13823514.

It is an arithmetic number, because the mean of its divisors is an integer number (7871985).

Almost surely, 2^732644864 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 732644864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (944638200).

732644864 is an abundant number, since it is smaller than the sum of its proper divisors (1156631536).

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

732644864 is a wasteful number, since it uses less digits than its factorization.

732644864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 110 counting only the distinct ones).

The product of its digits is 774144, while the sum is 44.

The square root of 732644864 is about 27067.4133230348. The cubic root of 732644864 is about 901.4974511401.

The spelling of 732644864 in words is "seven hundred thirty-two million, six hundred forty-four thousand, eight hundred sixty-four".