28446944 has 12 divisors (see below), whose sum is σ = 56004984. Its totient is φ = 14223456.

The previous prime is 28446937. The next prime is 28446949. The reversal of 28446944 is 44964482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28446949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444452 + ... + 444515.

It is an arithmetic number, because the mean of its divisors is an integer number (4667082).

Almost surely, 2^28446944 is an apocalyptic number.

It is an amenable number.

28446944 is a deficient number, since it is larger than the sum of its proper divisors (27558040).

28446944 is an equidigital number, since it uses as much as digits as its factorization.

28446944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888977 (or 888969 counting only the distinct ones).

The product of its digits is 221184, while the sum is 41.

The square root of 28446944 is about 5333.5676615189. The cubic root of 28446944 is about 305.2660725758.

The spelling of 28446944 in words is "twenty-eight million, four hundred forty-six thousand, nine hundred forty-four".