22005198 has 24 divisors (see below), whose sum is σ = 47783736. Its totient is φ = 7318800.

The previous prime is 22005169. The next prime is 22005199. The reversal of 22005198 is 89150022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22005199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9208 + ... + 11348.

It is an arithmetic number, because the mean of its divisors is an integer number (1990989).

Almost surely, 2^22005198 is an apocalyptic number.

22005198 is an abundant number, since it is smaller than the sum of its proper divisors (25778538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22005198 is a wasteful number, since it uses less digits than its factorization.

22005198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720 (or 2717 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 22005198 is about 4690.9698357589. The cubic root of 22005198 is about 280.2259995102.

The spelling of 22005198 in words is "twenty-two million, five thousand, one hundred ninety-eight".