744445 has 12 divisors (see below), whose sum is σ = 968436. Its totient is φ = 549120.

The previous prime is 744431. The next prime is 744451. The reversal of 744445 is 544447.

It can be written as a sum of positive squares in 6 ways, for example, as 264196 + 480249 = 514^2 + 693^2 .

It is not a de Polignac number, because 744445 - 2⁹ = 743933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 405 + ... + 1285.

It is an arithmetic number, because the mean of its divisors is an integer number (80703).

2⁷⁴⁴⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

744445 is a deficient number, since it is larger than the sum of its proper divisors (223991).

744445 is a wasteful number, since it uses less digits than its factorization.

744445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912 (or 899 counting only the distinct ones).

The product of its digits is 8960, while the sum is 28.

The square root of 744445 is about 862.8122623143. The cubic root of 744445 is about 90.6311601045.

The spelling of 744445 in words is "seven hundred forty-four thousand, four hundred forty-five".