744224 has 24 divisors (see below), whose sum is σ = 1578780. Its totient is φ = 343296.

The previous prime is 744221. The next prime is 744239. The reversal of 744224 is 422447.

It can be written as a sum of positive squares in 2 ways, for example, as 739600 + 4624 = 860^2 + 68^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 744224.

It is not an unprimeable number, because it can be changed into a prime (744221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479 + ... + 1310.

2⁷⁴⁴²²⁴ is an apocalyptic number.

It is an amenable number.

744224 is an abundant number, since it is smaller than the sum of its proper divisors (834556).

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

744224 is a wasteful number, since it uses less digits than its factorization.

744224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812 (or 1804 counting only the distinct ones).

The product of its digits is 1792, while the sum is 23.

The square root of 744224 is about 862.6841832328. The cubic root of 744224 is about 90.6221907968.

The spelling of 744224 in words is "seven hundred forty-four thousand, two hundred twenty-four", and thus it is an iban number.