22815898 has 16 divisors (see below), whose sum is σ = 39188160. Its totient is φ = 9759456.

The previous prime is 22815889. The next prime is 22815901. The reversal of 22815898 is 89851822.

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 7 ways as a sum of consecutive naturals, for example, 7990 + ... + 10462.

It is an arithmetic number, because the mean of its divisors is an integer number (2449260).

Almost surely, 2^22815898 is an apocalyptic number.

22815898 is a deficient number, since it is larger than the sum of its proper divisors (16372262).

22815898 is a wasteful number, since it uses less digits than its factorization.

22815898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141.

The product of its digits is 92160, while the sum is 43.

The square root of 22815898 is about 4776.5989992881. The cubic root of 22815898 is about 283.6258794600.

The spelling of 22815898 in words is "twenty-two million, eight hundred fifteen thousand, eight hundred ninety-eight".