218104612 has 24 divisors (see below), whose sum is σ = 417074112. Its totient is φ = 98973600.

The previous prime is 218104589. The next prime is 218104639. The reversal of 218104612 is 216401812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24937 + ... + 32527.

It is an arithmetic number, because the mean of its divisors is an integer number (17378088).

Almost surely, 2^218104612 is an apocalyptic number.

218104612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

218104612 is a deficient number, since it is larger than the sum of its proper divisors (198969500).

218104612 is a wasteful number, since it uses less digits than its factorization.

218104612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8259 (or 8257 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 218104612 is about 14768.3652446708. The cubic root of 218104612 is about 601.9424197051.

The spelling of 218104612 in words is "two hundred eighteen million, one hundred four thousand, six hundred twelve".