749809724 has 12 divisors (see below), whose sum is σ = 1312361400. Its totient is φ = 374849328.

The previous prime is 749809721. The next prime is 749809747. The reversal of 749809724 is 427908947.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749809721) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38222 + ... + 54410.

It is an arithmetic number, because the mean of its divisors is an integer number (109363450).

Almost surely, 2^749809724 is an apocalyptic number.

It is an amenable number.

749809724 is a deficient number, since it is larger than the sum of its proper divisors (562551676).

749809724 is a wasteful number, since it uses less digits than its factorization.

749809724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27772 (or 27770 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 749809724 is about 27382.6537063156. The cubic root of 749809724 is about 908.4834555980.

The spelling of 749809724 in words is "seven hundred forty-nine million, eight hundred nine thousand, seven hundred twenty-four".