222732746 has 8 divisors (see below), whose sum is σ = 342248004. Its totient is φ = 108650080.

The previous prime is 222732739. The next prime is 222732749. The reversal of 222732746 is 647237222.

It can be written as a sum of positive squares in 2 ways, for example, as 199798225 + 22934521 = 14135^2 + 4789^2 .

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

It is a super-2 number, since 2×222732746² = 99219752281401032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222732749) 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 3 ways as a sum of consecutive naturals, for example, 1358045 + ... + 1358208.

Almost surely, 2^222732746 is an apocalyptic number.

222732746 is a deficient number, since it is larger than the sum of its proper divisors (119515258).

222732746 is a wasteful number, since it uses less digits than its factorization.

222732746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716296.

The product of its digits is 56448, while the sum is 35.

The square root of 222732746 is about 14924.2335146566. The cubic root of 222732746 is about 606.1703511616.

Adding to 222732746 its reverse (647237222), we get a palindrome (869969968).

The spelling of 222732746 in words is "two hundred twenty-two million, seven hundred thirty-two thousand, seven hundred forty-six".