214218990 has 48 divisors (see below), whose sum is σ = 574943616. Its totient is φ = 55281600.

The previous prime is 214218947. The next prime is 214219013. The reversal of 214218990 is 99812412.

214218990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35601 + ... + 41180.

It is an arithmetic number, because the mean of its divisors is an integer number (11977992).

Almost surely, 2^214218990 is an apocalyptic number.

214218990 is an abundant number, since it is smaller than the sum of its proper divisors (360724626).

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

214218990 is a wasteful number, since it uses less digits than its factorization.

214218990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76825 (or 76822 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 214218990 is about 14636.2218485509. The cubic root of 214218990 is about 598.3463633299.

The spelling of 214218990 in words is "two hundred fourteen million, two hundred eighteen thousand, nine hundred ninety".