28534560 has 48 divisors (see below), whose sum is σ = 89885376. Its totient is φ = 7609088.

The previous prime is 28534549. The next prime is 28534573. The reversal of 28534560 is 6543582.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×28534560² = 1628442228787200, which contains 22 as substring.

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, 29244 + ... + 30203.

It is an arithmetic number, because the mean of its divisors is an integer number (1872612).

Almost surely, 2^28534560 is an apocalyptic number.

28534560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28534560 is an abundant number, since it is smaller than the sum of its proper divisors (61350816).

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

28534560 is a wasteful number, since it uses less digits than its factorization.

28534560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59465 (or 59457 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 28534560 is about 5341.7749859012. The cubic root of 28534560 is about 305.5791557651.

The spelling of 28534560 in words is "twenty-eight million, five hundred thirty-four thousand, five hundred sixty".