28285750 has 16 divisors (see below), whose sum is σ = 52951392. Its totient is φ = 11314200.

The previous prime is 28285711. The next prime is 28285753. The reversal of 28285750 is 5758282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28285753) 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, 56322 + ... + 56821.

It is an arithmetic number, because the mean of its divisors is an integer number (3309462).

Almost surely, 2^28285750 is an apocalyptic number.

28285750 is a deficient number, since it is larger than the sum of its proper divisors (24665642).

28285750 is a wasteful number, since it uses less digits than its factorization.

28285750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113160 (or 113150 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 28285750 is about 5318.4349201621. The cubic root of 28285750 is about 304.6883854894.

The spelling of 28285750 in words is "twenty-eight million, two hundred eighty-five thousand, seven hundred fifty".