216838982 has 12 divisors (see below), whose sum is σ = 343279476. Its totient is φ = 102712860.

The previous prime is 216838967. The next prime is 216838991. The reversal of 216838982 is 289838612.

It is a super-2 number, since 2×216838982² = 94038288229592648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149444 + ... + 150887.

It is an arithmetic number, because the mean of its divisors is an integer number (28606623).

Almost surely, 2^216838982 is an apocalyptic number.

216838982 is a deficient number, since it is larger than the sum of its proper divisors (126440494).

216838982 is a wasteful number, since it uses less digits than its factorization.

216838982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300371 (or 300352 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 216838982 is about 14725.4535414024. The cubic root of 216838982 is about 600.7758315618.

The spelling of 216838982 in words is "two hundred sixteen million, eight hundred thirty-eight thousand, nine hundred eighty-two".