214421166 has 24 divisors (see below), whose sum is σ = 467975664. Its totient is φ = 70951200.

The previous prime is 214421131. The next prime is 214421171. The reversal of 214421166 is 661124412.

It is a super-3 number, since 3×214421166³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41010 + ... + 45941.

It is an arithmetic number, because the mean of its divisors is an integer number (19498986).

Almost surely, 2^214421166 is an apocalyptic number.

214421166 is an abundant number, since it is smaller than the sum of its proper divisors (253554498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214421166 is a wasteful number, since it uses less digits than its factorization.

214421166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87096 (or 87093 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 214421166 is about 14643.1269201629. The cubic root of 214421166 is about 598.5345402938.

Adding to 214421166 its reverse (661124412), we get a palindrome (875545578).

The spelling of 214421166 in words is "two hundred fourteen million, four hundred twenty-one thousand, one hundred sixty-six".