222642042 has 32 divisors (see below), whose sum is σ = 510371712. Its totient is φ = 63427584.

The previous prime is 222641989. The next prime is 222642053. The reversal of 222642042 is 240246222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7318 + ... + 22334.

It is an arithmetic number, because the mean of its divisors is an integer number (15949116).

Almost surely, 2^222642042 is an apocalyptic number.

222642042 is an abundant number, since it is smaller than the sum of its proper divisors (287729670).

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

222642042 is a wasteful number, since it uses less digits than its factorization.

222642042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15382.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 222642042 is about 14921.1943891902. The cubic root of 222642042 is about 606.0880559121.

Adding to 222642042 its reverse (240246222), we get a palindrome (462888264).

The spelling of 222642042 in words is "two hundred twenty-two million, six hundred forty-two thousand, forty-two".