1223394198 has 16 divisors (see below), whose sum is σ = 2635003056. Its totient is φ = 376428960.

The previous prime is 1223394191. The next prime is 1223394209. The reversal of 1223394198 is 8914933221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223394191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7842193 + ... + 7842348.

It is an arithmetic number, because the mean of its divisors is an integer number (164687691).

Almost surely, 2^1223394198 is an apocalyptic number.

1223394198 is an abundant number, since it is smaller than the sum of its proper divisors (1411608858).

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

1223394198 is a wasteful number, since it uses less digits than its factorization.

1223394198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15684559.

The product of its digits is 93312, while the sum is 42.

The square root of 1223394198 is about 34977.0524487127. The cubic root of 1223394198 is about 1069.5197419662.

The spelling of 1223394198 in words is "one billion, two hundred twenty-three million, three hundred ninety-four thousand, one hundred ninety-eight".