22081932 has 36 divisors (see below), whose sum is σ = 58247280. Its totient is φ = 7040352.

The previous prime is 22081931. The next prime is 22081967. The reversal of 22081932 is 23918022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×22081932² = 975223441705248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22081896 and 22081905.

It is not an unprimeable number, because it can be changed into a prime (22081931) 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 11 ways as a sum of consecutive naturals, for example, 12507 + ... + 14162.

It is an arithmetic number, because the mean of its divisors is an integer number (1617980).

Almost surely, 2^22081932 is an apocalyptic number.

It is an amenable number.

22081932 is an abundant number, since it is smaller than the sum of its proper divisors (36165348).

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

22081932 is a wasteful number, since it uses less digits than its factorization.

22081932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26702 (or 26697 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 22081932 is about 4699.1416237436. The cubic root of 22081932 is about 280.5513456103.

Adding to 22081932 its reverse (23918022), we get a palindrome (45999954).

The spelling of 22081932 in words is "twenty-two million, eighty-one thousand, nine hundred thirty-two".