20238222 has 16 divisors (see below), whose sum is σ = 40965120. Its totient is φ = 6664632.

The previous prime is 20238203. The next prime is 20238227. The reversal of 20238222 is 22283202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20238227) 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, 19822 + ... + 20817.

It is an arithmetic number, because the mean of its divisors is an integer number (2560320).

Almost surely, 2^20238222 is an apocalyptic number.

20238222 is an abundant number, since it is smaller than the sum of its proper divisors (20726898).

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

20238222 is a wasteful number, since it uses less digits than its factorization.

20238222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40727.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20238222 is about 4498.6911429881. The cubic root of 20238222 is about 272.5152341173.

The spelling of 20238222 in words is "twenty million, two hundred thirty-eight thousand, two hundred twenty-two".