222716449 has 4 divisors (see below), whose sum is σ = 222746436. Its totient is φ = 222686464.

The previous prime is 222716447. The next prime is 222716489. The reversal of 222716449 is 944617222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 203575824 + 19140625 = 14268^2 + 4375^2 .

It is a cyclic number.

It is not a de Polignac number, because 222716449 - 2¹ = 222716447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222716447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5337 + ... + 21769.

It is an arithmetic number, because the mean of its divisors is an integer number (55686609).

Almost surely, 2^222716449 is an apocalyptic number.

It is an amenable number.

222716449 is a deficient number, since it is larger than the sum of its proper divisors (29987).

222716449 is a wasteful number, since it uses less digits than its factorization.

222716449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29986.

The product of its digits is 48384, while the sum is 37.

The square root of 222716449 is about 14923.6875134800. The cubic root of 222716449 is about 606.1555666282.

The spelling of 222716449 in words is "two hundred twenty-two million, seven hundred sixteen thousand, four hundred forty-nine".