749772490 has 64 divisors (see below), whose sum is σ = 1454112000. Its totient is φ = 277516800.

The previous prime is 749772487. The next prime is 749772511. The reversal of 749772490 is 94277947.

749772490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1707691 + ... + 1708129.

It is an arithmetic number, because the mean of its divisors is an integer number (22720500).

Almost surely, 2^749772490 is an apocalyptic number.

749772490 is a deficient number, since it is larger than the sum of its proper divisors (704339510).

749772490 is a wasteful number, since it uses less digits than its factorization.

749772490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655.

The product of its (nonzero) digits is 889056, while the sum is 49.

The square root of 749772490 is about 27381.9738149024. The cubic root of 749772490 is about 908.4684175459.

The spelling of 749772490 in words is "seven hundred forty-nine million, seven hundred seventy-two thousand, four hundred ninety".