28422894 has 16 divisors (see below), whose sum is σ = 59317632. Its totient is φ = 9062328.

The previous prime is 28422883. The next prime is 28422907. The reversal of 28422894 is 49822482.

It is a congruent number.

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, 102844 + ... + 103119.

It is an arithmetic number, because the mean of its divisors is an integer number (3707352).

Almost surely, 2^28422894 is an apocalyptic number.

28422894 is an abundant number, since it is smaller than the sum of its proper divisors (30894738).

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

28422894 is a wasteful number, since it uses less digits than its factorization.

28422894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205991.

The product of its digits is 73728, while the sum is 39.

The square root of 28422894 is about 5331.3125963500. The cubic root of 28422894 is about 305.1800209308.

The spelling of 28422894 in words is "twenty-eight million, four hundred twenty-two thousand, eight hundred ninety-four".