22815798 has 16 divisors (see below), whose sum is σ = 45935616. Its totient is φ = 7554600.

The previous prime is 22815797. The next prime is 22815809. The reversal of 22815798 is 89751822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22815797) 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 7 ways as a sum of consecutive naturals, for example, 11686 + ... + 13497.

It is an arithmetic number, because the mean of its divisors is an integer number (2870976).

Almost surely, 2^22815798 is an apocalyptic number.

22815798 is an abundant number, since it is smaller than the sum of its proper divisors (23119818).

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

22815798 is a wasteful number, since it uses less digits than its factorization.

22815798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25339.

The product of its digits is 80640, while the sum is 42.

The square root of 22815798 is about 4776.5885315777. The cubic root of 22815798 is about 283.6254650906.

The spelling of 22815798 in words is "twenty-two million, eight hundred fifteen thousand, seven hundred ninety-eight".