22531422 has 8 divisors (see below), whose sum is σ = 45062856. Its totient is φ = 7510472.

The previous prime is 22531417. The next prime is 22531433. The reversal of 22531422 is 22413522.

It is a sphenic number, since it is the product of 3 distinct primes.

22531422 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1877613 + ... + 1877624.

It is an arithmetic number, because the mean of its divisors is an integer number (5632857).

Almost surely, 2^22531422 is an apocalyptic number.

22531422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22531422 is a wasteful number, since it uses less digits than its factorization.

22531422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755242.

The product of its digits is 960, while the sum is 21.

The square root of 22531422 is about 4746.7275042918. The cubic root of 22531422 is about 282.4421663530.

Adding to 22531422 its reverse (22413522), we get a palindrome (44944944).

The spelling of 22531422 in words is "twenty-two million, five hundred thirty-one thousand, four hundred twenty-two".