22513422 has 8 divisors (see below), whose sum is σ = 45026856. Its totient is φ = 7504472.

The previous prime is 22513399. The next prime is 22513429. The reversal of 22513422 is 22431522.

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

22513422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22513429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1876113 + ... + 1876124.

It is an arithmetic number, because the mean of its divisors is an integer number (5628357).

Almost surely, 2^22513422 is an apocalyptic number.

22513422 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.

22513422 is a wasteful number, since it uses less digits than its factorization.

22513422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752242.

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

The square root of 22513422 is about 4744.8310823463. The cubic root of 22513422 is about 282.3669334416.

Adding to 22513422 its reverse (22431522), we get a palindrome (44944944).

The spelling of 22513422 in words is "twenty-two million, five hundred thirteen thousand, four hundred twenty-two".