22331982 has 16 divisors (see below), whose sum is σ = 47291472. Its totient is φ = 7006080.

The previous prime is 22331951. The next prime is 22331983. The reversal of 22331982 is 28913322.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22331983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109369 + ... + 109572.

It is an arithmetic number, because the mean of its divisors is an integer number (2955717).

Almost surely, 2^22331982 is an apocalyptic number.

22331982 is an abundant number, since it is smaller than the sum of its proper divisors (24959490).

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

22331982 is a wasteful number, since it uses less digits than its factorization.

22331982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218963.

The product of its digits is 5184, while the sum is 30.

The square root of 22331982 is about 4725.6726505335. The cubic root of 22331982 is about 281.6063366854.

The spelling of 22331982 in words is "twenty-two million, three hundred thirty-one thousand, nine hundred eighty-two".