22481808 has 20 divisors (see below), whose sum is σ = 58078128. Its totient is φ = 7493920.

The previous prime is 22481801. The next prime is 22481813. The reversal of 22481808 is 80818422.

It is not an unprimeable number, because it can be changed into a prime (22481801) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 234138 + ... + 234233.

Almost surely, 2^22481808 is an apocalyptic number.

It is an amenable number.

22481808 is an abundant number, since it is smaller than the sum of its proper divisors (35596320).

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

22481808 is a wasteful number, since it uses less digits than its factorization.

22481808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468382 (or 468376 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 22481808 is about 4741.4984973107. The cubic root of 22481808 is about 282.2347022494.

The spelling of 22481808 in words is "twenty-two million, four hundred eighty-one thousand, eight hundred eight".