22019982 has 16 divisors (see below), whose sum is σ = 45460992. Its totient is φ = 7103160.

The previous prime is 22019969. The next prime is 22019989. The reversal of 22019982 is 28991022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22019989) 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, 59008 + ... + 59379.

It is an arithmetic number, because the mean of its divisors is an integer number (2841312).

Almost surely, 2^22019982 is an apocalyptic number.

22019982 is an abundant number, since it is smaller than the sum of its proper divisors (23441010).

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

22019982 is a wasteful number, since it uses less digits than its factorization.

22019982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118423.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 22019982 is about 4692.5453647248. The cubic root of 22019982 is about 280.2887412579.

It can be divided in two parts, 220 and 19982, that added together give a palindrome (20202).

The spelling of 22019982 in words is "twenty-two million, nineteen thousand, nine hundred eighty-two".