218822452 has 6 divisors (see below), whose sum is σ = 382939298. Its totient is φ = 109411224.

The previous prime is 218822413. The next prime is 218822467. The reversal of 218822452 is 254228812.

It can be written as a sum of positive squares in only one way, i.e., 177528976 + 41293476 = 13324^2 + 6426^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27352803 + ... + 27352810.

Almost surely, 2^218822452 is an apocalyptic number.

It is an amenable number.

218822452 is a deficient number, since it is larger than the sum of its proper divisors (164116846).

218822452 is a wasteful number, since it uses less digits than its factorization.

218822452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54705617 (or 54705615 counting only the distinct ones).

The product of its digits is 20480, while the sum is 34.

The square root of 218822452 is about 14792.6485796155. The cubic root of 218822452 is about 602.6020804637.

The spelling of 218822452 in words is "two hundred eighteen million, eight hundred twenty-two thousand, four hundred fifty-two".