22107828 has 24 divisors (see below), whose sum is σ = 51731680. Its totient is φ = 7348320.

The previous prime is 22107823. The next prime is 22107857. The reversal of 22107828 is 82870122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22107795 and 22107804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22107823) 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, 2118 + ... + 6978.

Almost surely, 2^22107828 is an apocalyptic number.

It is an amenable number.

22107828 is an abundant number, since it is smaller than the sum of its proper divisors (29623852).

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

22107828 is a wasteful number, since it uses less digits than its factorization.

22107828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247 (or 5245 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 22107828 is about 4701.8962132314. The cubic root of 22107828 is about 280.6609724836.

The spelling of 22107828 in words is "twenty-two million, one hundred seven thousand, eight hundred twenty-eight".