749633320 has 64 divisors (see below), whose sum is σ = 1788249600. Its totient is φ = 282320640.

The previous prime is 749633317. The next prime is 749633321. The reversal of 749633320 is 23336947.

It is a super-2 number, since 2×749633320² = 1123900228908444800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 749633320.

It is not an unprimeable number, because it can be changed into a prime (749633321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37711 + ... + 54049.

It is an arithmetic number, because the mean of its divisors is an integer number (27941400).

Almost surely, 2^749633320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749633320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894124800).

749633320 is an abundant number, since it is smaller than the sum of its proper divisors (1038616280).

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

749633320 is a wasteful number, since it uses less digits than its factorization.

749633320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16418 (or 16414 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 37.

The square root of 749633320 is about 27379.4324265497. The cubic root of 749633320 is about 908.4122052172.

The spelling of 749633320 in words is "seven hundred forty-nine million, six hundred thirty-three thousand, three hundred twenty".