218956982 has 8 divisors (see below), whose sum is σ = 329810400. Its totient is φ = 109020184.

The previous prime is 218956963. The next prime is 218957027. The reversal of 218956982 is 289659812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 218956982.

It is a congruent number.

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, 228557 + ... + 229512.

It is an arithmetic number, because the mean of its divisors is an integer number (41226300).

Almost surely, 2^218956982 is an apocalyptic number.

218956982 is a deficient number, since it is larger than the sum of its proper divisors (110853418).

218956982 is a wasteful number, since it uses less digits than its factorization.

218956982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458310.

The product of its digits is 622080, while the sum is 50.

The square root of 218956982 is about 14797.1950720398. The cubic root of 218956982 is about 602.7255465425.

The spelling of 218956982 in words is "two hundred eighteen million, nine hundred fifty-six thousand, nine hundred eighty-two".