22481406 has 24 divisors (see below), whose sum is σ = 48901320. Its totient is φ = 7464336.

The previous prime is 22481383. The next prime is 22481453. The reversal of 22481406 is 60418422.

It is a self number, because there is not a number n which added to its sum of digits gives 22481406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2521 + ... + 7163.

It is an arithmetic number, because the mean of its divisors is an integer number (2037555).

Almost surely, 2^22481406 is an apocalyptic number.

22481406 is an abundant number, since it is smaller than the sum of its proper divisors (26419914).

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

22481406 is a wasteful number, since it uses less digits than its factorization.

22481406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920 (or 4917 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 22481406 is about 4741.4561054596. The cubic root of 22481406 is about 282.2330200148.

Adding to 22481406 its reverse (60418422), we get a palindrome (82899828).

The spelling of 22481406 in words is "twenty-two million, four hundred eighty-one thousand, four hundred six".