22422132 has 36 divisors (see below), whose sum is σ = 57271396. Its totient is φ = 7395840.

The previous prime is 22422131. The next prime is 22422139. The reversal of 22422132 is 23122422.

It can be written as a sum of positive squares in 2 ways, for example, as 8088336 + 14333796 = 2844^2 + 3786^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22422131) 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, 282 + ... + 6702.

Almost surely, 2^22422132 is an apocalyptic number.

It is an amenable number.

22422132 is an abundant number, since it is smaller than the sum of its proper divisors (34849264).

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

22422132 is a wasteful number, since it uses less digits than its factorization.

22422132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6528 (or 6523 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 22422132 is about 4735.2013684742. The cubic root of 22422132 is about 281.9847584942.

Adding to 22422132 its reverse (23122422), we get a palindrome (45544554).

The spelling of 22422132 in words is "twenty-two million, four hundred twenty-two thousand, one hundred thirty-two".