749931338 has 16 divisors (see below), whose sum is σ = 1215262440. Its totient is φ = 345026496.

The previous prime is 749931331. The next prime is 749931367. The reversal of 749931338 is 833139947.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 403487569 + 346443769 = 20087^2 + 18613^2 .

It is a junction number, because it is equal to n+sod(n) for n = 749931292 and 749931301.

It is not an unprimeable number, because it can be changed into a prime (749931331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37253 + ... + 53736.

Almost surely, 2^749931338 is an apocalyptic number.

749931338 is a deficient number, since it is larger than the sum of its proper divisors (465331102).

749931338 is a wasteful number, since it uses less digits than its factorization.

749931338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91321.

The product of its digits is 489888, while the sum is 47.

The square root of 749931338 is about 27384.8742556909. The cubic root of 749931338 is about 908.5325695401.

The spelling of 749931338 in words is "seven hundred forty-nine million, nine hundred thirty-one thousand, three hundred thirty-eight".