218056208 has 10 divisors (see below), whose sum is σ = 422483934. Its totient is φ = 109028096.

The previous prime is 218056177. The next prime is 218056211. The reversal of 218056208 is 802650812.

218056208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 184090624 + 33965584 = 13568^2 + 5828^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6814241 + ... + 6814272.

Almost surely, 2^218056208 is an apocalyptic number.

It is an amenable number.

218056208 is a deficient number, since it is larger than the sum of its proper divisors (204427726).

218056208 is a wasteful number, since it uses less digits than its factorization.

218056208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13628521 (or 13628515 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 218056208 is about 14766.7263806167. The cubic root of 218056208 is about 601.8978866768.

The spelling of 218056208 in words is "two hundred eighteen million, fifty-six thousand, two hundred eight".