218264241 has 16 divisors (see below), whose sum is σ = 331841664. Its totient is φ = 126415104.

The previous prime is 218264231. The next prime is 218264243. The reversal of 218264241 is 142462812.

It is not a de Polignac number, because 218264241 - 2⁹ = 218263729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 218264199 and 218264208.

It is not an unprimeable number, because it can be changed into a prime (218264243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163941 + ... + 165266.

It is an arithmetic number, because the mean of its divisors is an integer number (20740104).

Almost surely, 2^218264241 is an apocalyptic number.

It is an amenable number.

218264241 is a deficient number, since it is larger than the sum of its proper divisors (113577423).

218264241 is a wasteful number, since it uses less digits than its factorization.

218264241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329240.

The product of its digits is 6144, while the sum is 30.

The square root of 218264241 is about 14773.7686796565. The cubic root of 218264241 is about 602.0892361544.

The spelling of 218264241 in words is "two hundred eighteen million, two hundred sixty-four thousand, two hundred forty-one".