22045828 has 24 divisors (see below), whose sum is σ = 44194752. Its totient is φ = 9426144.

The previous prime is 22045813. The next prime is 22045841. The reversal of 22045828 is 82854022.

It is a self number, because there is not a number n which added to its sum of digits gives 22045828.

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, 18375 + ... + 19537.

It is an arithmetic number, because the mean of its divisors is an integer number (1841448).

Almost surely, 2^22045828 is an apocalyptic number.

22045828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22045828 is an abundant number, since it is smaller than the sum of its proper divisors (22148924).

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

22045828 is a wasteful number, since it uses less digits than its factorization.

22045828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 22045828 is about 4695.2984995632. The cubic root of 22045828 is about 280.3983615458.

The spelling of 22045828 in words is "twenty-two million, forty-five thousand, eight hundred twenty-eight".