22504198 has 4 divisors (see below), whose sum is σ = 33756300. Its totient is φ = 11252098.

The previous prime is 22504187. The next prime is 22504201. The reversal of 22504198 is 89140522.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5626048 + ... + 5626051.

It is an arithmetic number, because the mean of its divisors is an integer number (8439075).

Almost surely, 2^22504198 is an apocalyptic number.

22504198 is a deficient number, since it is larger than the sum of its proper divisors (11252102).

22504198 is a wasteful number, since it uses less digits than its factorization.

22504198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11252101.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 22504198 is about 4743.8589776679. The cubic root of 22504198 is about 282.3283652136.

The spelling of 22504198 in words is "twenty-two million, five hundred four thousand, one hundred ninety-eight".