22085724 has 24 divisors (see below), whose sum is σ = 51649920. Its totient is φ = 7345264.

The previous prime is 22085677. The next prime is 22085731. The reversal of 22085724 is 42758022.

It is a junction number, because it is equal to n+sod(n) for n = 22085691 and 22085700.

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, 4207 + ... + 7865.

It is an arithmetic number, because the mean of its divisors is an integer number (2152080).

Almost surely, 2^22085724 is an apocalyptic number.

It is an amenable number.

22085724 is an abundant number, since it is smaller than the sum of its proper divisors (29564196).

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

22085724 is a wasteful number, since it uses less digits than its factorization.

22085724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169 (or 4167 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 22085724 is about 4699.5450843672. The cubic root of 22085724 is about 280.5674038340.

The spelling of 22085724 in words is "twenty-two million, eighty-five thousand, seven hundred twenty-four".