222463909 has 8 divisors (see below), whose sum is σ = 228112920. Its totient is φ = 216825600.

The previous prime is 222463883. The next prime is 222463931. The reversal of 222463909 is 909364222.

It can be written as a sum of positive squares in 4 ways, for example, as 2772225 + 219691684 = 1665^2 + 14822^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222463909 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 (222463999) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54657 + ... + 58585.

It is an arithmetic number, because the mean of its divisors is an integer number (28514115).

Almost surely, 2^222463909 is an apocalyptic number.

It is an amenable number.

222463909 is a deficient number, since it is larger than the sum of its proper divisors (5649011).

222463909 is a wasteful number, since it uses less digits than its factorization.

222463909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 222463909 is about 14915.2240680454. The cubic root of 222463909 is about 605.9263717290.

The spelling of 222463909 in words is "two hundred twenty-two million, four hundred sixty-three thousand, nine hundred nine".