218383796 has 12 divisors (see below), whose sum is σ = 402286080. Its totient is φ = 103444920.

The previous prime is 218383727. The next prime is 218383801. The reversal of 218383796 is 697383812.

It is a self number, because there is not a number n which added to its sum of digits gives 218383796.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436660 + ... + 1436811.

It is an arithmetic number, because the mean of its divisors is an integer number (33523840).

Almost surely, 2^218383796 is an apocalyptic number.

It is an amenable number.

218383796 is a deficient number, since it is larger than the sum of its proper divisors (183902284).

218383796 is a wasteful number, since it uses less digits than its factorization.

218383796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873494 (or 2873492 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 218383796 is about 14777.8143174151. The cubic root of 218383796 is about 602.1991482490.

The spelling of 218383796 in words is "two hundred eighteen million, three hundred eighty-three thousand, seven hundred ninety-six".