222390994 has 16 divisors (see below), whose sum is σ = 387493056. Its totient is φ = 93747600.

The previous prime is 222390967. The next prime is 222391003. The reversal of 222390994 is 499093222.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129352 + ... + 131059.

It is an arithmetic number, because the mean of its divisors is an integer number (24218316).

Almost surely, 2^222390994 is an apocalyptic number.

222390994 is a deficient number, since it is larger than the sum of its proper divisors (165102062).

222390994 is a wasteful number, since it uses less digits than its factorization.

222390994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260481.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 222390994 is about 14912.7795531215. The cubic root of 222390994 is about 605.8601648112.

The spelling of 222390994 in words is "two hundred twenty-two million, three hundred ninety thousand, nine hundred ninety-four".