222394805 has 8 divisors (see below), whose sum is σ = 266954712. Its totient is φ = 177861888.

The previous prime is 222394789. The next prime is 222394807. The reversal of 222394805 is 508493222.

It can be written as a sum of positive squares in 4 ways, for example, as 23951236 + 198443569 = 4894^2 + 14087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222394805 - 2⁴ = 222394789 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 (222394807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24809 + ... + 32561.

It is an arithmetic number, because the mean of its divisors is an integer number (33369339).

Almost surely, 2^222394805 is an apocalyptic number.

It is an amenable number.

222394805 is a deficient number, since it is larger than the sum of its proper divisors (44559907).

222394805 is an equidigital number, since it uses as much as digits as its factorization.

222394805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13495.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 222394805 is about 14912.9073288880. The cubic root of 222394805 is about 605.8636255627.

The spelling of 222394805 in words is "two hundred twenty-two million, three hundred ninety-four thousand, eight hundred five".