218244245 has 16 divisors (see below), whose sum is σ = 268729920. Its totient is φ = 170091264.

The previous prime is 218244211. The next prime is 218244281. The reversal of 218244245 is 542442812.

It is a cyclic number.

It is not a de Polignac number, because 218244245 - 2²⁴ = 201467029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30062 + ... + 36608.

It is an arithmetic number, because the mean of its divisors is an integer number (16795620).

Almost surely, 2^218244245 is an apocalyptic number.

It is an amenable number.

218244245 is a deficient number, since it is larger than the sum of its proper divisors (50485675).

218244245 is a wasteful number, since it uses less digits than its factorization.

218244245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724.

The product of its digits is 20480, while the sum is 32.

The square root of 218244245 is about 14773.0919241708. The cubic root of 218244245 is about 602.0708490472.

The spelling of 218244245 in words is "two hundred eighteen million, two hundred forty-four thousand, two hundred forty-five".