28344924 has 48 divisors (see below), whose sum is σ = 76688640. Its totient is φ = 9036720.

The previous prime is 28344917. The next prime is 28344929. The reversal of 28344924 is 42944382.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28344929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3222 + ... + 8189.

It is an arithmetic number, because the mean of its divisors is an integer number (1597680).

Almost surely, 2^28344924 is an apocalyptic number.

It is an amenable number.

28344924 is an abundant number, since it is smaller than the sum of its proper divisors (48343716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28344924 is a wasteful number, since it uses less digits than its factorization.

28344924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11447 (or 11439 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 28344924 is about 5323.9951164516. The cubic root of 28344924 is about 304.9007076235.

The spelling of 28344924 in words is "twenty-eight million, three hundred forty-four thousand, nine hundred twenty-four".