28532756 has 24 divisors (see below), whose sum is σ = 60070080. Its totient is φ = 11584512.

The previous prime is 28532747. The next prime is 28532759. The reversal of 28532756 is 65723582.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28532759) 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, 26285 + ... + 27348.

It is an arithmetic number, because the mean of its divisors is an integer number (2502920).

Almost surely, 2^28532756 is an apocalyptic number.

It is an amenable number.

28532756 is an abundant number, since it is smaller than the sum of its proper divisors (31537324).

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

28532756 is a wasteful number, since it uses less digits than its factorization.

28532756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53663 (or 53661 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 28532756 is about 5341.6061255020. The cubic root of 28532756 is about 305.5727158970.

The spelling of 28532756 in words is "twenty-eight million, five hundred thirty-two thousand, seven hundred fifty-six".