222630042 has 16 divisors (see below), whose sum is σ = 460614240. Its totient is φ = 71650992.

The previous prime is 222630019. The next prime is 222630059. The reversal of 222630042 is 240036222.

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 7 ways as a sum of consecutive naturals, for example, 639568 + ... + 639915.

It is an arithmetic number, because the mean of its divisors is an integer number (28788390).

Almost surely, 2^222630042 is an apocalyptic number.

222630042 is an abundant number, since it is smaller than the sum of its proper divisors (237984198).

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

222630042 is a wasteful number, since it uses less digits than its factorization.

222630042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279517.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 222630042 is about 14920.7922711899. The cubic root of 222630042 is about 606.0771667029.

Adding to 222630042 its reverse (240036222), we get a palindrome (462666264).

The spelling of 222630042 in words is "two hundred twenty-two million, six hundred thirty thousand, forty-two".