222343405 has 4 divisors (see below), whose sum is σ = 266812092. Its totient is φ = 177874720.

The previous prime is 222343361. The next prime is 222343421. The reversal of 222343405 is 504343222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504343222 = 2 ⋅252171611.

It can be written as a sum of positive squares in 2 ways, for example, as 153685609 + 68657796 = 12397^2 + 8286^2 .

It is not a de Polignac number, because 222343405 - 2¹⁵ = 222310637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222343405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22234336 + ... + 22234345.

It is an arithmetic number, because the mean of its divisors is an integer number (66703023).

Almost surely, 2^222343405 is an apocalyptic number.

It is an amenable number.

222343405 is a deficient number, since it is larger than the sum of its proper divisors (44468687).

222343405 is an equidigital number, since it uses as much as digits as its factorization.

222343405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44468686.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 222343405 is about 14911.1838899532. The cubic root of 222343405 is about 605.8169461303.

Adding to 222343405 its reverse (504343222), we get a palindrome (726686627).

The spelling of 222343405 in words is "two hundred twenty-two million, three hundred forty-three thousand, four hundred five".