744663442 has 16 divisors (see below), whose sum is σ = 1122011352. Its totient is φ = 370664320.

The previous prime is 744663419. The next prime is 744663487. The reversal of 744663442 is 244366447.

It can be written as a sum of positive squares in 4 ways, for example, as 733380561 + 11282881 = 27081^2 + 3359^2 .

It is a junction number, because it is equal to n+sod(n) for n = 744663395 and 744663404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623598 + ... + 624790.

Almost surely, 2^744663442 is an apocalyptic number.

744663442 is a deficient number, since it is larger than the sum of its proper divisors (377347910).

744663442 is a wasteful number, since it uses less digits than its factorization.

744663442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333.

The product of its digits is 387072, while the sum is 40.

The square root of 744663442 is about 27288.5221659217. The cubic root of 744663442 is about 906.4002385118.

The spelling of 744663442 in words is "seven hundred forty-four million, six hundred sixty-three thousand, four hundred forty-two".