28562232 has 32 divisors (see below), whose sum is σ = 72147600. Its totient is φ = 9421824.

The previous prime is 28562231. The next prime is 28562239. The reversal of 28562232 is 23226582.

It is a self number, because there is not a number n which added to its sum of digits gives 28562232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28562231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3807 + ... + 8462.

Almost surely, 2^28562232 is an apocalyptic number.

It is an amenable number.

28562232 is an abundant number, since it is smaller than the sum of its proper divisors (43585368).

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

28562232 is a wasteful number, since it uses less digits than its factorization.

28562232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12375 (or 12371 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 28562232 is about 5344.3645085267. The cubic root of 28562232 is about 305.6779044920.

The spelling of 28562232 in words is "twenty-eight million, five hundred sixty-two thousand, two hundred thirty-two".