22481136 has 30 divisors (see below), whose sum is σ = 62916360. Its totient is φ = 7493664.

The previous prime is 22481117. The next prime is 22481149. The reversal of 22481136 is 63118422.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77916 + ... + 78203.

It is an arithmetic number, because the mean of its divisors is an integer number (2097212).

Almost surely, 2^22481136 is an apocalyptic number.

It is an amenable number.

22481136 is an abundant number, since it is smaller than the sum of its proper divisors (40435224).

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

22481136 is a wasteful number, since it uses less digits than its factorization.

22481136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156133 (or 156124 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 22481136 is about 4741.4276331080. The cubic root of 22481136 is about 282.2318901444.

Adding to 22481136 its reverse (63118422), we get a palindrome (85599558).

The spelling of 22481136 in words is "twenty-two million, four hundred eighty-one thousand, one hundred thirty-six".