222890289 has 8 divisors (see below), whose sum is σ = 298156320. Its totient is φ = 148108896.

The previous prime is 222890267. The next prime is 222890299. The reversal of 222890289 is 982098222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222890289 - 2¹² = 222886193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222890289.

It is not an unprimeable number, because it can be changed into a prime (222890299) by changing a digit.

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, 120084 + ... + 121925.

It is an arithmetic number, because the mean of its divisors is an integer number (37269540).

Almost surely, 2^222890289 is an apocalyptic number.

It is an amenable number.

222890289 is a deficient number, since it is larger than the sum of its proper divisors (75266031).

222890289 is a wasteful number, since it uses less digits than its factorization.

222890289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242319.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 222890289 is about 14929.5106751695. The cubic root of 222890289 is about 606.3132359872.

The spelling of 222890289 in words is "two hundred twenty-two million, eight hundred ninety thousand, two hundred eighty-nine".