744456 has 16 divisors (see below), whose sum is σ = 1861200. Its totient is φ = 248144.

The previous prime is 744451. The next prime is 744493. The reversal of 744456 is 654447.

It is not an unprimeable number, because it can be changed into a prime (744451) by changing a digit.

744456 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15486 + ... + 15533.

It is an arithmetic number, because the mean of its divisors is an integer number (116325).

2⁷⁴⁴⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

744456 is an abundant number, since it is smaller than the sum of its proper divisors (1116744).

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

744456 is a wasteful number, since it uses less digits than its factorization.

744456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31028 (or 31024 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 744456 is about 862.8186367945. The cubic root of 744456 is about 90.6316064942.

Subtracting from 744456 its reverse (654447), we obtain a palindrome (90009).

The spelling of 744456 in words is "seven hundred forty-four thousand, four hundred fifty-six".