218900996 has 12 divisors (see below), whose sum is σ = 391227648. Its totient is φ = 107121672.

The previous prime is 218900987. The next prime is 218901017. The reversal of 218900996 is 699009812.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581996 + ... + 582371.

It is an arithmetic number, because the mean of its divisors is an integer number (32602304).

Almost surely, 2^218900996 is an apocalyptic number.

It is an amenable number.

218900996 is a deficient number, since it is larger than the sum of its proper divisors (172326652).

218900996 is a wasteful number, since it uses less digits than its factorization.

218900996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164418 (or 1164416 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 218900996 is about 14795.3031736426. The cubic root of 218900996 is about 602.6741710491.

The spelling of 218900996 in words is "two hundred eighteen million, nine hundred thousand, nine hundred ninety-six".