744338881 has 12 divisors (see below), whose sum is σ = 881094676. Its totient is φ = 624618720.

The previous prime is 744338831. The next prime is 744338899. The reversal of 744338881 is 188833447.

It can be written as a sum of positive squares in 2 ways, for example, as 462938256 + 281400625 = 21516^2 + 16775^2 .

It is not a de Polignac number, because 744338881 - 2¹⁷ = 744207809 is a prime.

It is a super-2 number, since 2×744338881² = 1108080739536664322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (744338831) 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, 235026 + ... + 238171.

Almost surely, 2^744338881 is an apocalyptic number.

It is an amenable number.

744338881 is a deficient number, since it is larger than the sum of its proper divisors (136755795).

744338881 is a wasteful number, since it uses less digits than its factorization.

744338881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473232 (or 473221 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 744338881 is about 27282.5746768885. The cubic root of 744338881 is about 906.2685347553.

The spelling of 744338881 in words is "seven hundred forty-four million, three hundred thirty-eight thousand, eight hundred eighty-one".