28444352 has 14 divisors (see below), whose sum is σ = 56444388. Its totient is φ = 14222144.

The previous prime is 28444343. The next prime is 28444357. The reversal of 28444352 is 25344482.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (28444357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222158 + ... + 222285.

It is an arithmetic number, because the mean of its divisors is an integer number (4031742).

Almost surely, 2^28444352 is an apocalyptic number.

It is an amenable number.

28444352 is a deficient number, since it is larger than the sum of its proper divisors (28000036).

28444352 is an equidigital number, since it uses as much as digits as its factorization.

28444352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444455 (or 444445 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

The square root of 28444352 is about 5333.3246666596. The cubic root of 28444352 is about 305.2568006520.

The spelling of 28444352 in words is "twenty-eight million, four hundred forty-four thousand, three hundred fifty-two".