222446689 has 8 divisors (see below), whose sum is σ = 230436360. Its totient is φ = 214579200.

The previous prime is 222446677. The next prime is 222446711. The reversal of 222446689 is 986644222.

It can be written as a sum of positive squares in 4 ways, for example, as 36397089 + 186049600 = 6033^2 + 13640^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 222446689 - 2⁵ = 222446657 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (222446659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26832 + ... + 34129.

It is an arithmetic number, because the mean of its divisors is an integer number (28804545).

Almost surely, 2^222446689 is an apocalyptic number.

It is an amenable number.

222446689 is a deficient number, since it is larger than the sum of its proper divisors (7989671).

222446689 is an equidigital number, since it uses as much as digits as its factorization.

222446689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61091.

The product of its digits is 331776, while the sum is 43.

The square root of 222446689 is about 14914.6467943428. The cubic root of 222446689 is about 605.9107372509.

The spelling of 222446689 in words is "two hundred twenty-two million, four hundred forty-six thousand, six hundred eighty-nine".