22432254 has 64 divisors (see below), whose sum is σ = 51287040. Its totient is φ = 6491520.

The previous prime is 22432247. The next prime is 22432259. The reversal of 22432254 is 45223422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22432259) 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, 106209 + ... + 106419.

It is an arithmetic number, because the mean of its divisors is an integer number (801360).

Almost surely, 2^22432254 is an apocalyptic number.

22432254 is the 2532-nd nonagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22432254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25643520).

22432254 is an abundant number, since it is smaller than the sum of its proper divisors (28854786).

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

22432254 is a wasteful number, since it uses less digits than its factorization.

22432254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its digits is 3840, while the sum is 24.

The square root of 22432254 is about 4736.2700514223. The cubic root of 22432254 is about 282.0271841407.

Adding to 22432254 its reverse (45223422), we get a palindrome (67655676).

The spelling of 22432254 in words is "twenty-two million, four hundred thirty-two thousand, two hundred fifty-four".