218994848 has 12 divisors (see below), whose sum is σ = 431146170. Its totient is φ = 109497408.

The previous prime is 218994827. The next prime is 218994859. The reversal of 218994848 is 848499812.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 215854864 + 3139984 = 14692^2 + 1772^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 218994848.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3421763 + ... + 3421826.

Almost surely, 2^218994848 is an apocalyptic number.

It is an amenable number.

218994848 is a deficient number, since it is larger than the sum of its proper divisors (212151322).

218994848 is an equidigital number, since it uses as much as digits as its factorization.

218994848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843599 (or 6843591 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 53.

The square root of 218994848 is about 14798.4745159763. The cubic root of 218994848 is about 602.7602892726.

The spelling of 218994848 in words is "two hundred eighteen million, nine hundred ninety-four thousand, eight hundred forty-eight".