218648902 has 16 divisors (see below), whose sum is σ = 347058432. Its totient is φ = 103096840.

The previous prime is 218648891. The next prime is 218648909. The reversal of 218648902 is 209846812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218648909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30208 + ... + 36739.

It is an arithmetic number, because the mean of its divisors is an integer number (21691152).

Almost surely, 2^218648902 is an apocalyptic number.

218648902 is a deficient number, since it is larger than the sum of its proper divisors (128409530).

218648902 is a wasteful number, since it uses less digits than its factorization.

218648902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67043.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 218648902 is about 14786.7813265768. The cubic root of 218648902 is about 602.4427286689.

The spelling of 218648902 in words is "two hundred eighteen million, six hundred forty-eight thousand, nine hundred two".