218492104 has 32 divisors (see below), whose sum is σ = 427910400. Its totient is φ = 104483520.

The previous prime is 218492093. The next prime is 218492137. The reversal of 218492104 is 401294812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11209 + ... + 23719.

It is an arithmetic number, because the mean of its divisors is an integer number (13372200).

Almost surely, 2^218492104 is an apocalyptic number.

It is an amenable number.

218492104 is a deficient number, since it is larger than the sum of its proper divisors (209418296).

218492104 is a wasteful number, since it uses less digits than its factorization.

218492104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12613 (or 12609 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 218492104 is about 14781.4784104974. The cubic root of 218492104 is about 602.2986858628.

The spelling of 218492104 in words is "two hundred eighteen million, four hundred ninety-two thousand, one hundred four".