744745856 has 32 divisors (see below), whose sum is σ = 1485507600. Its totient is φ = 371912704.

The previous prime is 744745817. The next prime is 744745861. The reversal of 744745856 is 658547447.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115781 + ... + 122043.

Almost surely, 2^744745856 is an apocalyptic number.

It is an amenable number.

744745856 is a deficient number, since it is larger than the sum of its proper divisors (740761744).

744745856 is an equidigital number, since it uses as much as digits as its factorization.

744745856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7206 (or 7194 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 50.

The square root of 744745856 is about 27290.0321729382. The cubic root of 744745856 is about 906.4336752338.

The spelling of 744745856 in words is "seven hundred forty-four million, seven hundred forty-five thousand, eight hundred fifty-six".