222642342 has 48 divisors (see below), whose sum is σ = 546851760. Its totient is φ = 64898496.

The previous prime is 222642331. The next prime is 222642359. The reversal of 222642342 is 243246222.

It is a happy number.

It is a super-2 number, since 2×222642342² = 99139224902489928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 20593 + ... + 29484.

It is an arithmetic number, because the mean of its divisors is an integer number (11392745).

Almost surely, 2^222642342 is an apocalyptic number.

222642342 is an abundant number, since it is smaller than the sum of its proper divisors (324209418).

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

222642342 is a wasteful number, since it uses less digits than its factorization.

222642342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50117 (or 50114 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 222642342 is about 14921.2044420013. The cubic root of 222642342 is about 606.0883281373.

Adding to 222642342 its reverse (243246222), we get a palindrome (465888564).

The spelling of 222642342 in words is "two hundred twenty-two million, six hundred forty-two thousand, three hundred forty-two".