28244799 has 12 divisors (see below), whose sum is σ = 44507112. Its totient is φ = 17118000.

The previous prime is 28244767. The next prime is 28244809. The reversal of 28244799 is 99744282.

It is not a de Polignac number, because 28244799 - 2⁵ = 28244767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28244719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142552 + ... + 142749.

It is an arithmetic number, because the mean of its divisors is an integer number (3708926).

Almost surely, 2^28244799 is an apocalyptic number.

28244799 is a deficient number, since it is larger than the sum of its proper divisors (16262313).

28244799 is a wasteful number, since it uses less digits than its factorization.

28244799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285318 (or 285315 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 28244799 is about 5314.5836149222. The cubic root of 28244799 is about 304.5412758400.

The spelling of 28244799 in words is "twenty-eight million, two hundred forty-four thousand, seven hundred ninety-nine".