28524372 has 24 divisors (see below), whose sum is σ = 67401600. Its totient is φ = 9387456.

The previous prime is 28524367. The next prime is 28524383. The reversal of 28524372 is 27342582.

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, 14097 + ... + 15992.

It is an arithmetic number, because the mean of its divisors is an integer number (2808400).

Almost surely, 2^28524372 is an apocalyptic number.

It is an amenable number.

28524372 is an abundant number, since it is smaller than the sum of its proper divisors (38877228).

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

28524372 is a wasteful number, since it uses less digits than its factorization.

28524372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30175 (or 30173 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 28524372 is about 5340.8212851583. The cubic root of 28524372 is about 305.5427833682.

The spelling of 28524372 in words is "twenty-eight million, five hundred twenty-four thousand, three hundred seventy-two".