222789641 has 4 divisors (see below), whose sum is σ = 235894932. Its totient is φ = 209684352.

The previous prime is 222789601. The next prime is 222789643. The reversal of 222789641 is 146987222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96452041 + 126337600 = 9821^2 + 11240^2 .

It is a cyclic number.

It is not a de Polignac number, because 222789641 - 2⁶ = 222789577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222789643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6552620 + ... + 6552653.

It is an arithmetic number, because the mean of its divisors is an integer number (58973733).

Almost surely, 2^222789641 is an apocalyptic number.

It is an amenable number.

222789641 is a deficient number, since it is larger than the sum of its proper divisors (13105291).

222789641 is a wasteful number, since it uses less digits than its factorization.

222789641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13105290.

The product of its digits is 96768, while the sum is 41.

The square root of 222789641 is about 14926.1395209880. The cubic root of 222789641 is about 606.2219602860.

The spelling of 222789641 in words is "two hundred twenty-two million, seven hundred eighty-nine thousand, six hundred forty-one".