749640692 has 12 divisors (see below), whose sum is σ = 1336623876. Its totient is φ = 367748160.

The previous prime is 749640643. The next prime is 749640701. The reversal of 749640692 is 296046947.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 336575716 + 413064976 = 18346^2 + 20324^2 .

It is a super-2 number, since 2×749640692² = 1123922334204477728, which contains 22 as substring.

It is a congruent number.

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, 1767809 + ... + 1768232.

It is an arithmetic number, because the mean of its divisors is an integer number (111385323).

Almost surely, 2^749640692 is an apocalyptic number.

It is an amenable number.

749640692 is a deficient number, since it is larger than the sum of its proper divisors (586983184).

749640692 is a wasteful number, since it uses less digits than its factorization.

749640692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3536098 (or 3536096 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 749640692 is about 27379.5670528224. The cubic root of 749640692 is about 908.4151830254.

The spelling of 749640692 in words is "seven hundred forty-nine million, six hundred forty thousand, six hundred ninety-two".