744945 has 8 divisors (see below), whose sum is σ = 1191936. Its totient is φ = 397296.

The previous prime is 744941. The next prime is 744949. The reversal of 744945 is 549447.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (744941) and next prime (744949).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 744945 - 2² = 744941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (744941) by changing a digit.

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, 24817 + ... + 24846.

It is an arithmetic number, because the mean of its divisors is an integer number (148992).

2⁷⁴⁴⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

744945 is a deficient number, since it is larger than the sum of its proper divisors (446991).

744945 is a wasteful number, since it uses less digits than its factorization.

744945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49671.

The product of its digits is 20160, while the sum is 33.

The square root of 744945 is about 863.1019638490. The cubic root of 744945 is about 90.6514461066.

The spelling of 744945 in words is "seven hundred forty-four thousand, nine hundred forty-five".