222442990 has 64 divisors (see below), whose sum is σ = 501355008. Its totient is φ = 69033600.

The previous prime is 222442967. The next prime is 222442991. The reversal of 222442990 is 99244222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222442991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235920 + ... + 236860.

It is an arithmetic number, because the mean of its divisors is an integer number (7833672).

Almost surely, 2^222442990 is an apocalyptic number.

222442990 is an abundant number, since it is smaller than the sum of its proper divisors (278912018).

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

222442990 is a wasteful number, since it uses less digits than its factorization.

222442990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 222442990 is about 14914.5227882088. The cubic root of 222442990 is about 605.9073787290.

The spelling of 222442990 in words is "two hundred twenty-two million, four hundred forty-two thousand, nine hundred ninety".