704624640 has 96 divisors (see below), whose sum is σ = 2254346640. Its totient is φ = 187891712.

The previous prime is 704624623. The next prime is 704624651. The reversal of 704624640 is 46426407.

704624640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19252 + ... + 42188.

Almost surely, 2^704624640 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 704624640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1127173320).

704624640 is an abundant number, since it is smaller than the sum of its proper divisors (1549722000).

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

704624640 is a wasteful number, since it uses less digits than its factorization.

704624640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22967 (or 22947 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 704624640 is about 26544.7667158708. The cubic root of 704624640 is about 889.8550620352.

The spelling of 704624640 in words is "seven hundred four million, six hundred twenty-four thousand, six hundred forty".