214861806 has 24 divisors (see below), whose sum is σ = 480552384. Its totient is φ = 69310080.

The previous prime is 214861789. The next prime is 214861813. The reversal of 214861806 is 608168412.

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, 191971 + ... + 193086.

It is an arithmetic number, because the mean of its divisors is an integer number (20023016).

Almost surely, 2^214861806 is an apocalyptic number.

214861806 is an abundant number, since it is smaller than the sum of its proper divisors (265690578).

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

214861806 is a wasteful number, since it uses less digits than its factorization.

214861806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385096 (or 385093 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 214861806 is about 14658.1651648492. The cubic root of 214861806 is about 598.9442601117.

The spelling of 214861806 in words is "two hundred fourteen million, eight hundred sixty-one thousand, eight hundred six".