22810198 has 4 divisors (see below), whose sum is σ = 34215300. Its totient is φ = 11405098.

The previous prime is 22810189. The next prime is 22810199. The reversal of 22810198 is 89101822.

It is a happy number.

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 not an unprimeable number, because it can be changed into a prime (22810199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5702548 + ... + 5702551.

It is an arithmetic number, because the mean of its divisors is an integer number (8553825).

Almost surely, 2^22810198 is an apocalyptic number.

22810198 is a deficient number, since it is larger than the sum of its proper divisors (11405102).

22810198 is a wasteful number, since it uses less digits than its factorization.

22810198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11405101.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 22810198 is about 4776.0023031820. The cubic root of 22810198 is about 283.6022584720.

The spelling of 22810198 in words is "twenty-two million, eight hundred ten thousand, one hundred ninety-eight".