744464643 has 16 divisors (see below), whose sum is σ = 1076157600. Its totient is φ = 455053824.

The previous prime is 744464603. The next prime is 744464657. The reversal of 744464643 is 346464447.

It is not a de Polignac number, because 744464643 - 2⁸ = 744464387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 744464595 and 744464604.

It is not an unprimeable number, because it can be changed into a prime (744464603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58246 + ... + 69867.

It is an arithmetic number, because the mean of its divisors is an integer number (67259850).

Almost surely, 2^744464643 is an apocalyptic number.

744464643 is a deficient number, since it is larger than the sum of its proper divisors (331692957).

744464643 is a wasteful number, since it uses less digits than its factorization.

744464643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128278.

The product of its digits is 774144, while the sum is 42.

The square root of 744464643 is about 27284.8793840105. The cubic root of 744464643 is about 906.3195723172.

The spelling of 744464643 in words is "seven hundred forty-four million, four hundred sixty-four thousand, six hundred forty-three".