218096728 has 8 divisors (see below), whose sum is σ = 408931380. Its totient is φ = 109048360.

The previous prime is 218096717. The next prime is 218096729. The reversal of 218096728 is 827690812.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218096729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13631038 + ... + 13631053.

Almost surely, 2^218096728 is an apocalyptic number.

It is an amenable number.

218096728 is a deficient number, since it is larger than the sum of its proper divisors (190834652).

218096728 is a wasteful number, since it uses less digits than its factorization.

218096728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27262097 (or 27262093 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 218096728 is about 14768.0983203661. The cubic root of 218096728 is about 601.9351666547.

The spelling of 218096728 in words is "two hundred eighteen million, ninety-six thousand, seven hundred twenty-eight".