222240415 has 4 divisors (see below), whose sum is σ = 266688504. Its totient is φ = 177792328.

The previous prime is 222240413. The next prime is 222240419. The reversal of 222240415 is 514042222.

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

It is a cyclic number.

It is not a de Polignac number, because 222240415 - 2¹ = 222240413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222240413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22224037 + ... + 22224046.

It is an arithmetic number, because the mean of its divisors is an integer number (66672126).

Almost surely, 2^222240415 is an apocalyptic number.

222240415 is a deficient number, since it is larger than the sum of its proper divisors (44448089).

222240415 is an equidigital number, since it uses as much as digits as its factorization.

222240415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44448088.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 222240415 is about 14907.7300418273. The cubic root of 222240415 is about 605.7233930619.

Adding to 222240415 its reverse (514042222), we get a palindrome (736282637).

The spelling of 222240415 in words is "two hundred twenty-two million, two hundred forty thousand, four hundred fifteen".