744768540 has 48 divisors (see below), whose sum is σ = 2317059360. Its totient is φ = 198604800.

The previous prime is 744768539. The next prime is 744768601. The reversal of 744768540 is 45867447.

744768540 is a `hidden beast` number, since 7 + 4 + 47 + 68 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 689061 + ... + 690140.

It is an arithmetic number, because the mean of its divisors is an integer number (48272070).

Almost surely, 2^744768540 is an apocalyptic number.

It is an amenable number.

744768540 is an abundant number, since it is smaller than the sum of its proper divisors (1572290820).

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

744768540 is a wasteful number, since it uses less digits than its factorization.

744768540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379219 (or 1379211 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The square root of 744768540 is about 27290.4477793971. The cubic root of 744768540 is about 906.4428780747.

The spelling of 744768540 in words is "seven hundred forty-four million, seven hundred sixty-eight thousand, five hundred forty".