749131312 has 20 divisors (see below), whose sum is σ = 1454243976. Its totient is φ = 373842560.

The previous prime is 749131303. The next prime is 749131343. The reversal of 749131312 is 213131947.

It is a super-2 number, since 2×749131312² = 1122395445237682688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36598 + ... + 53269.

Almost surely, 2^749131312 is an apocalyptic number.

It is an amenable number.

749131312 is a deficient number, since it is larger than the sum of its proper divisors (705112664).

749131312 is a wasteful number, since it uses less digits than its factorization.

749131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90396 (or 90390 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 749131312 is about 27370.2632796983. The cubic root of 749131312 is about 908.2093807087.

The spelling of 749131312 in words is "seven hundred forty-nine million, one hundred thirty-one thousand, three hundred twelve".