744928 has 12 divisors (see below), whose sum is σ = 1466640. Its totient is φ = 372448.

The previous prime is 744917. The next prime is 744941. The reversal of 744928 is 829447.

It is a happy number.

It is a d-powerful number, because it can be written as 7⁵ + 4³ + 9⁶ + 4⁸ + 2¹⁷ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 744893 and 744902.

It is a congruent number.

It is an unprimeable number.

744928 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11608 + ... + 11671.

It is an arithmetic number, because the mean of its divisors is an integer number (122220).

2⁷⁴⁴⁹²⁸ is an apocalyptic number.

It is an amenable number.

744928 is a deficient number, since it is larger than the sum of its proper divisors (721712).

744928 is a wasteful number, since it uses less digits than its factorization.

744928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23289 (or 23281 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 744928 is about 863.0921155937. The cubic root of 744928 is about 90.6507565316.

The spelling of 744928 in words is "seven hundred forty-four thousand, nine hundred twenty-eight".