22756198 has 4 divisors (see below), whose sum is σ = 34134300. Its totient is φ = 11378098.

The previous prime is 22756171. The next prime is 22756207. The reversal of 22756198 is 89165722.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 22756198.

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, 5689048 + ... + 5689051.

It is an arithmetic number, because the mean of its divisors is an integer number (8533575).

Almost surely, 2^22756198 is an apocalyptic number.

22756198 is a deficient number, since it is larger than the sum of its proper divisors (11378102).

22756198 is a wasteful number, since it uses less digits than its factorization.

22756198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11378101.

The product of its digits is 60480, while the sum is 40.

The square root of 22756198 is about 4770.3456897797. The cubic root of 22756198 is about 283.3782852169.

The spelling of 22756198 in words is "twenty-two million, seven hundred fifty-six thousand, one hundred ninety-eight".