744149440 has 56 divisors (see below), whose sum is σ = 1865284560. Its totient is φ = 281991168.

The previous prime is 744149401. The next prime is 744149453. The reversal of 744149440 is 44941447.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 744149440.

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 7 ways as a sum of consecutive naturals, for example, 55117 + ... + 67276.

Almost surely, 2^744149440 is an apocalyptic number.

It is an amenable number.

744149440 is an abundant number, since it is smaller than the sum of its proper divisors (1121135120).

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

744149440 is a wasteful number, since it uses less digits than its factorization.

744149440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122429 (or 122419 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 744149440 is about 27279.1026245366. The cubic root of 744149440 is about 906.1916437096.

The spelling of 744149440 in words is "seven hundred forty-four million, one hundred forty-nine thousand, four hundred forty".