749420624 has 40 divisors (see below), whose sum is σ = 1479209640. Its totient is φ = 367718400.

The previous prime is 749420611. The next prime is 749420657. The reversal of 749420624 is 426024947.

It can be written as a sum of positive squares in 4 ways, for example, as 100801600 + 648619024 = 10040^2 + 25468^2 .

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 7 ways as a sum of consecutive naturals, for example, 742232 + ... + 743240.

It is an arithmetic number, because the mean of its divisors is an integer number (36980241).

Almost surely, 2^749420624 is an apocalyptic number.

It is an amenable number.

749420624 is a deficient number, since it is larger than the sum of its proper divisors (729789016).

749420624 is a wasteful number, since it uses less digits than its factorization.

749420624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 749420624 is about 27375.5479214572. The cubic root of 749420624 is about 908.3262814666.

The spelling of 749420624 in words is "seven hundred forty-nine million, four hundred twenty thousand, six hundred twenty-four".