222340 has 12 divisors (see below), whose sum is σ = 466956. Its totient is φ = 88928.

The previous prime is 222337. The next prime is 222347. The reversal of 222340 is 43222.

222340 = T₁₃₉ + T₁₄₀ + ... + T₁₅₈.

It can be written as a sum of positive squares in 2 ways, for example, as 49284 + 173056 = 222^2 + 416^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222340.

It is not an unprimeable number, because it can be changed into a prime (222347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5539 + ... + 5578.

It is an arithmetic number, because the mean of its divisors is an integer number (38913).

2²²²³⁴⁰ is an apocalyptic number.

222340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222340 is an abundant number, since it is smaller than the sum of its proper divisors (244616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222340 is a wasteful number, since it uses less digits than its factorization.

222340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11126 (or 11124 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 222340 is about 471.5294264412. The cubic root of 222340 is about 60.5813853591.

Adding to 222340 its reverse (43222), we get a palindrome (265562).

The spelling of 222340 in words is "two hundred twenty-two thousand, three hundred forty", and thus it is an iban number.