749845172 has 12 divisors (see below), whose sum is σ = 1369282656. Its totient is φ = 358621560.

The previous prime is 749845153. The next prime is 749845177. The reversal of 749845172 is 271548947.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749845177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4075154 + ... + 4075337.

It is an arithmetic number, because the mean of its divisors is an integer number (114106888).

Almost surely, 2^749845172 is an apocalyptic number.

It is an amenable number.

749845172 is a deficient number, since it is larger than the sum of its proper divisors (619437484).

749845172 is a wasteful number, since it uses less digits than its factorization.

749845172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8150518 (or 8150516 counting only the distinct ones).

The product of its digits is 564480, while the sum is 47.

The square root of 749845172 is about 27383.3009697516. The cubic root of 749845172 is about 908.4977718585.

The spelling of 749845172 in words is "seven hundred forty-nine million, eight hundred forty-five thousand, one hundred seventy-two".