28085432 has 8 divisors (see below), whose sum is σ = 52660200. Its totient is φ = 14042712.

The previous prime is 28085429. The next prime is 28085441. The reversal of 28085432 is 23458082.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1755332 + ... + 1755347.

It is an arithmetic number, because the mean of its divisors is an integer number (6582525).

Almost surely, 2^28085432 is an apocalyptic number.

It is an amenable number.

28085432 is a deficient number, since it is larger than the sum of its proper divisors (24574768).

28085432 is a wasteful number, since it uses less digits than its factorization.

28085432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510685 (or 3510681 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 28085432 is about 5299.5690390823. The cubic root of 28085432 is about 303.9674191768.

The spelling of 28085432 in words is "twenty-eight million, eighty-five thousand, four hundred thirty-two".