744652640 has 48 divisors (see below), whose sum is σ = 1761473952. Its totient is φ = 297483264.

The previous prime is 744652621. The next prime is 744652651. The reversal of 744652640 is 46256447.

744652640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 744652594 and 744652603.

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, 147437 + ... + 152403.

It is an arithmetic number, because the mean of its divisors is an integer number (36697374).

Almost surely, 2^744652640 is an apocalyptic number.

It is an amenable number.

744652640 is an abundant number, since it is smaller than the sum of its proper divisors (1016821312).

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

744652640 is a wasteful number, since it uses less digits than its factorization.

744652640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919 (or 5911 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 744652640 is about 27288.3242431630. The cubic root of 744652640 is about 906.3958557789.

The spelling of 744652640 in words is "seven hundred forty-four million, six hundred fifty-two thousand, six hundred forty".