744921376 has 48 divisors (see below), whose sum is σ = 1520762040. Its totient is φ = 358758400.

The previous prime is 744921341. The next prime is 744921383. The reversal of 744921376 is 673129447.

It can be written as a sum of positive squares in 4 ways, for example, as 177528976 + 567392400 = 13324^2 + 23820^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571926 + ... + 573226.

Almost surely, 2^744921376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 744921376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (760381020).

744921376 is an abundant number, since it is smaller than the sum of its proper divisors (775840664).

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

744921376 is a wasteful number, since it uses less digits than its factorization.

744921376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957 (or 1949 counting only the distinct ones).

The product of its digits is 254016, while the sum is 43.

The square root of 744921376 is about 27293.2478096690. The cubic root of 744921376 is about 906.5048783789.

The spelling of 744921376 in words is "seven hundred forty-four million, nine hundred twenty-one thousand, three hundred seventy-six".