22732122 has 64 divisors (see below), whose sum is σ = 54641664. Its totient is φ = 6168960.

The previous prime is 22732121. The next prime is 22732133. The reversal of 22732122 is 22123722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is not an unprimeable number, because it can be changed into a prime (22732121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73893 + ... + 74199.

It is an arithmetic number, because the mean of its divisors is an integer number (853776).

Almost surely, 2^22732122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22732122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27320832).

22732122 is an abundant number, since it is smaller than the sum of its proper divisors (31909542).

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

22732122 is a wasteful number, since it uses less digits than its factorization.

22732122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its digits is 672, while the sum is 21.

The square root of 22732122 is about 4767.8215151157. The cubic root of 22732122 is about 283.2783121149.

Adding to 22732122 its reverse (22123722), we get a palindrome (44855844).

Subtracting from 22732122 its reverse (22123722), we obtain a square (608400 = 780²).

The spelling of 22732122 in words is "twenty-two million, seven hundred thirty-two thousand, one hundred twenty-two".