630042222 has 32 divisors (see below), whose sum is σ = 1278604800. Its totient is φ = 206938368.

The previous prime is 630042211. The next prime is 630042227. The reversal of 630042222 is 222240036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630042227) by changing a digit.

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, 311358 + ... + 313374.

It is an arithmetic number, because the mean of its divisors is an integer number (39956400).

Almost surely, 2^630042222 is an apocalyptic number.

630042222 is an abundant number, since it is smaller than the sum of its proper divisors (648562578).

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

630042222 is a wasteful number, since it uses less digits than its factorization.

630042222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760.

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

The square root of 630042222 is about 25100.6418643030. The cubic root of 630042222 is about 857.2810387620.

Adding to 630042222 its reverse (222240036), we get a palindrome (852282258).

The spelling of 630042222 in words is "six hundred thirty million, forty-two thousand, two hundred twenty-two".