222398794 has 12 divisors (see below), whose sum is σ = 354376854. Its totient is φ = 104657984.

The previous prime is 222398791. The next prime is 222398833. The reversal of 222398794 is 497893222.

It can be written as a sum of positive squares in 3 ways, for example, as 222397569 + 1225 = 14913^2 + 35^2 .

It is a super-2 number, since 2×222398794² = 98922447145308872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222398791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191809 + ... + 192964.

Almost surely, 2^222398794 is an apocalyptic number.

222398794 is a deficient number, since it is larger than the sum of its proper divisors (131978060).

222398794 is a wasteful number, since it uses less digits than its factorization.

222398794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384809 (or 384792 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 222398794 is about 14913.0410714918. The cubic root of 222398794 is about 605.8672479128.

The spelling of 222398794 in words is "two hundred twenty-two million, three hundred ninety-eight thousand, seven hundred ninety-four".