22027818 has 16 divisors (see below), whose sum is σ = 46647360. Its totient is φ = 6910656.

The previous prime is 22027799. The next prime is 22027829. The reversal of 22027818 is 81872022.

It is a happy number.

It is a super-2 number, since 2×22027818² = 970449531682248, which contains 22 as substring.

It is a Curzon 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, 107878 + ... + 108081.

It is an arithmetic number, because the mean of its divisors is an integer number (2915460).

Almost surely, 2^22027818 is an apocalyptic number.

22027818 is an abundant number, since it is smaller than the sum of its proper divisors (24619542).

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

22027818 is a wasteful number, since it uses less digits than its factorization.

22027818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215981.

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

The square root of 22027818 is about 4693.3802317733. The cubic root of 22027818 is about 280.3219850347.

The spelling of 22027818 in words is "twenty-two million, twenty-seven thousand, eight hundred eighteen".