198343422 has 24 divisors (see below), whose sum is σ = 430831440. Its totient is φ = 65947200.

The previous prime is 198343381. The next prime is 198343423. The reversal of 198343422 is 224343891.

198343422 is a `hidden beast` number, since 198 + 3 + 43 + 422 = 666.

It is a super-2 number, since 2×198343422² = 78680226101340168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198343423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6522 + ... + 20957.

It is an arithmetic number, because the mean of its divisors is an integer number (17951310).

Almost surely, 2^198343422 is an apocalyptic number.

198343422 is an abundant number, since it is smaller than the sum of its proper divisors (232488018).

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

198343422 is a wasteful number, since it uses less digits than its factorization.

198343422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27888 (or 27885 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 198343422 is about 14083.4449620823. Note that the first 3 decimals coincide. The cubic root of 198343422 is about 583.1844479530.

It can be divided in two parts, 198343 and 422, that added together give a triangular number (198765 = T₆₃₀).

The spelling of 198343422 in words is "one hundred ninety-eight million, three hundred forty-three thousand, four hundred twenty-two".