222394841 has 4 divisors (see below), whose sum is σ = 222780852. Its totient is φ = 222008832.

The previous prime is 222394831. The next prime is 222394871. The reversal of 222394841 is 148493222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 148493222 = 2 ⋅74246611.

It can be written as a sum of positive squares in 2 ways, for example, as 196588441 + 25806400 = 14021^2 + 5080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222394841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222394831) 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, 192140 + ... + 193293.

It is an arithmetic number, because the mean of its divisors is an integer number (55695213).

Almost surely, 2^222394841 is an apocalyptic number.

It is an amenable number.

222394841 is a deficient number, since it is larger than the sum of its proper divisors (386011).

222394841 is an equidigital number, since it uses as much as digits as its factorization.

222394841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386010.

The product of its digits is 27648, while the sum is 35.

The square root of 222394841 is about 14912.9085358960. The cubic root of 222394841 is about 605.8636582539.

The spelling of 222394841 in words is "two hundred twenty-two million, three hundred ninety-four thousand, eight hundred forty-one".