28166466 has 32 divisors (see below), whose sum is σ = 57734208. Its totient is φ = 9158400.

The previous prime is 28166447. The next prime is 28166471. The reversal of 28166466 is 66466182.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46566 + ... + 47166.

It is an arithmetic number, because the mean of its divisors is an integer number (1804194).

Almost surely, 2^28166466 is an apocalyptic number.

28166466 is an abundant number, since it is smaller than the sum of its proper divisors (29567742).

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

28166466 is a wasteful number, since it uses less digits than its factorization.

28166466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786.

The product of its digits is 82944, while the sum is 39.

The square root of 28166466 is about 5307.2088709603. The cubic root of 28166466 is about 304.2594809601.

The spelling of 28166466 in words is "twenty-eight million, one hundred sixty-six thousand, four hundred sixty-six".