28422084 has 24 divisors (see below), whose sum is σ = 66404800. Its totient is φ = 9461664.

The previous prime is 28422083. The next prime is 28422091. The reversal of 28422084 is 48022482.

It is not an unprimeable number, because it can be changed into a prime (28422083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15942 + ... + 17634.

Almost surely, 2^28422084 is an apocalyptic number.

It is an amenable number.

28422084 is an abundant number, since it is smaller than the sum of its proper divisors (37982716).

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

28422084 is a wasteful number, since it uses less digits than its factorization.

28422084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099 (or 3097 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 28422084 is about 5331.2366295260. The cubic root of 28422084 is about 305.1771218809.

The spelling of 28422084 in words is "twenty-eight million, four hundred twenty-two thousand, eighty-four".