22198930 has 16 divisors (see below), whose sum is σ = 43032024. Its totient is φ = 8196480.

The previous prime is 22198919. The next prime is 22198951. The reversal of 22198930 is 3989122.

It can be written as a sum of positive squares in 4 ways, for example, as 13771521 + 8427409 = 3711^2 + 2903^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85251 + ... + 85510.

Almost surely, 2^22198930 is an apocalyptic number.

22198930 is a deficient number, since it is larger than the sum of its proper divisors (20833094).

22198930 is a wasteful number, since it uses less digits than its factorization.

22198930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170781.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 22198930 is about 4711.5740469614. The cubic root of 22198930 is about 281.0459603230.

The spelling of 22198930 in words is "twenty-two million, one hundred ninety-eight thousand, nine hundred thirty".