22027828 has 12 divisors (see below), whose sum is σ = 38697120. Its totient is φ = 10971512.

The previous prime is 22027799. The next prime is 22027829. The reversal of 22027828 is 82872022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22027828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22027829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9418 + ... + 11521.

It is an arithmetic number, because the mean of its divisors is an integer number (3224760).

Almost surely, 2^22027828 is an apocalyptic number.

It is an amenable number.

22027828 is a deficient number, since it is larger than the sum of its proper divisors (16669292).

22027828 is a wasteful number, since it uses less digits than its factorization.

22027828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21206 (or 21204 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 22027828 is about 4693.3812971034. The cubic root of 22027828 is about 280.3220274541.

It can be divided in two parts, 2202 and 7828, that multiplied together give a triangular number (17237256 = T₅₈₇₁).

The spelling of 22027828 in words is "twenty-two million, twenty-seven thousand, eight hundred twenty-eight".