749245506 has 32 divisors (see below), whose sum is σ = 1580640000. Its totient is φ = 236111760.

The previous prime is 749245499. The next prime is 749245529. The reversal of 749245506 is 605542947.

It is a super-2 number, since 2×749245506² = 1122737656522392072, which contains 22 as substring.

It is a Curzon 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, 50301 + ... + 63471.

It is an arithmetic number, because the mean of its divisors is an integer number (49395000).

Almost surely, 2^749245506 is an apocalyptic number.

749245506 is an abundant number, since it is smaller than the sum of its proper divisors (831394494).

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

749245506 is a wasteful number, since it uses less digits than its factorization.

749245506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13694.

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 749245506 is about 27372.3492963246. The cubic root of 749245506 is about 908.2555260645.

The spelling of 749245506 in words is "seven hundred forty-nine million, two hundred forty-five thousand, five hundred six".