744271938 has 24 divisors (see below), whose sum is σ = 1634682348. Its totient is φ = 244691712.

The previous prime is 744271897. The next prime is 744271939. The reversal of 744271938 is 839172447.

It can be written as a sum of positive squares in 2 ways, for example, as 711128889 + 33143049 = 26667^2 + 5757^2 .

It is a junction number, because it is equal to n+sod(n) for n = 744271893 and 744271902.

It is not an unprimeable number, because it can be changed into a prime (744271939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281895 + ... + 284522.

Almost surely, 2^744271938 is an apocalyptic number.

744271938 is an abundant number, since it is smaller than the sum of its proper divisors (890410410).

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

744271938 is a wasteful number, since it uses less digits than its factorization.

744271938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566498 (or 566495 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 744271938 is about 27281.3478039484. The cubic root of 744271938 is about 906.2413651623.

The spelling of 744271938 in words is "seven hundred forty-four million, two hundred seventy-one thousand, nine hundred thirty-eight".