28541512 has 16 divisors (see below), whose sum is σ = 53798400. Its totient is φ = 14195280.

The previous prime is 28541497. The next prime is 28541533. The reversal of 28541512 is 21514582.

It is a super-2 number, since 2×28541512² = 1629235814492288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7812 + ... + 10867.

It is an arithmetic number, because the mean of its divisors is an integer number (3362400).

Almost surely, 2^28541512 is an apocalyptic number.

It is an amenable number.

28541512 is a deficient number, since it is larger than the sum of its proper divisors (25256888).

28541512 is a wasteful number, since it uses less digits than its factorization.

28541512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18876 (or 18872 counting only the distinct ones).

The product of its digits is 3200, while the sum is 28.

The square root of 28541512 is about 5342.4256663055. The cubic root of 28541512 is about 305.6039702800.

The spelling of 28541512 in words is "twenty-eight million, five hundred forty-one thousand, five hundred twelve".