22271982 has 16 divisors (see below), whose sum is σ = 44613120. Its totient is φ = 7412472.

The previous prime is 22271927. The next prime is 22271987. The reversal of 22271982 is 28917222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22271987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923 + ... + 6945.

It is an arithmetic number, because the mean of its divisors is an integer number (2788320).

Almost surely, 2^22271982 is an apocalyptic number.

22271982 is an abundant number, since it is smaller than the sum of its proper divisors (22341138).

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

22271982 is a wasteful number, since it uses less digits than its factorization.

22271982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5767.

The product of its digits is 8064, while the sum is 33.

The square root of 22271982 is about 4719.3200781469. The cubic root of 22271982 is about 281.3539104441.

The spelling of 22271982 in words is "twenty-two million, two hundred seventy-one thousand, nine hundred eighty-two".