22906198 has 8 divisors (see below), whose sum is σ = 39267792. Its totient is φ = 9816936.

The previous prime is 22906187. The next prime is 22906199. The reversal of 22906198 is 89160922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22906199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 818065 + ... + 818092.

It is an arithmetic number, because the mean of its divisors is an integer number (4908474).

Almost surely, 2^22906198 is an apocalyptic number.

22906198 is a deficient number, since it is larger than the sum of its proper divisors (16361594).

22906198 is a wasteful number, since it uses less digits than its factorization.

22906198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636166.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 22906198 is about 4786.0419973084. The cubic root of 22906198 is about 283.9995619249. Note that the first 3 decimals are identical.

It can be divided in two parts, 22906 and 198, that added together give a square (23104 = 152²).

The spelling of 22906198 in words is "twenty-two million, nine hundred six thousand, one hundred ninety-eight".