22352232 has 96 divisors (see below), whose sum is σ = 66074400. Its totient is φ = 6281856.

The previous prime is 22352221. The next prime is 22352249. The reversal of 22352232 is 23225322.

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

It is a junction number, because it is equal to n+sod(n) for n = 22352199 and 22352208.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97494 + ... + 97722.

It is an arithmetic number, because the mean of its divisors is an integer number (688275).

Almost surely, 2^22352232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22352232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33037200).

22352232 is an abundant number, since it is smaller than the sum of its proper divisors (43722168).

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

22352232 is a wasteful number, since it uses less digits than its factorization.

22352232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 324 counting only the distinct ones).

The product of its digits is 1440, while the sum is 21.

The square root of 22352232 is about 4727.8147171817. The cubic root of 22352232 is about 281.6914284842.

Adding to 22352232 its reverse (23225322), we get a palindrome (45577554).

The spelling of 22352232 in words is "twenty-two million, three hundred fifty-two thousand, two hundred thirty-two".