28174668 has 24 divisors (see below), whose sum is σ = 65839872. Its totient is φ = 9377424.

The previous prime is 28174651. The next prime is 28174673. The reversal of 28174668 is 86647182.

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, 9321 + ... + 11967.

It is an arithmetic number, because the mean of its divisors is an integer number (2743328).

Almost surely, 2^28174668 is an apocalyptic number.

It is an amenable number.

28174668 is an abundant number, since it is smaller than the sum of its proper divisors (37665204).

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

28174668 is a wasteful number, since it uses less digits than its factorization.

28174668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541 (or 3539 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 28174668 is about 5307.9815372701. The cubic root of 28174668 is about 304.2890112779.

The spelling of 28174668 in words is "twenty-eight million, one hundred seventy-four thousand, six hundred sixty-eight".