28597244 has 24 divisors (see below), whose sum is σ = 55046208. Its totient is φ = 12916800.

The previous prime is 28597237. The next prime is 28597253. The reversal of 28597244 is 44279582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3407 + ... + 8294.

It is an arithmetic number, because the mean of its divisors is an integer number (2293592).

Almost surely, 2^28597244 is an apocalyptic number.

It is an amenable number.

28597244 is a deficient number, since it is larger than the sum of its proper divisors (26448964).

28597244 is a wasteful number, since it uses less digits than its factorization.

28597244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11765 (or 11763 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 28597244 is about 5347.6391052501. The cubic root of 28597244 is about 305.8027549672.

The spelling of 28597244 in words is "twenty-eight million, five hundred ninety-seven thousand, two hundred forty-four".