22481305 has 16 divisors (see below), whose sum is σ = 33634944. Its totient is φ = 14014080.

The previous prime is 22481279. The next prime is 22481321. The reversal of 22481305 is 50318422.

It is not a de Polignac number, because 22481305 - 2²³ = 14092697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22481305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28812 + ... + 29581.

It is an arithmetic number, because the mean of its divisors is an integer number (2102184).

Almost surely, 2^22481305 is an apocalyptic number.

It is an amenable number.

22481305 is a deficient number, since it is larger than the sum of its proper divisors (11153639).

22481305 is a wasteful number, since it uses less digits than its factorization.

22481305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58416.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 22481305 is about 4741.4454547110. The cubic root of 22481305 is about 282.2325973606.

Adding to 22481305 its reverse (50318422), we get a palindrome (72799727).

It can be divided in two parts, 2248 and 1305, that added together give a palindrome (3553).

The spelling of 22481305 in words is "twenty-two million, four hundred eighty-one thousand, three hundred five".