214890305 has 8 divisors (see below), whose sum is σ = 294706752. Its totient is φ = 147353328.

The previous prime is 214890287. The next prime is 214890317. The reversal of 214890305 is 503098412.

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

It is a cyclic number.

It is not a de Polignac number, because 214890305 - 2¹⁰ = 214889281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3069827 + ... + 3069896.

It is an arithmetic number, because the mean of its divisors is an integer number (36838344).

Almost surely, 2^214890305 is an apocalyptic number.

It is an amenable number.

214890305 is a deficient number, since it is larger than the sum of its proper divisors (79816447).

214890305 is an equidigital number, since it uses as much as digits as its factorization.

214890305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6139735.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 214890305 is about 14659.1372529218. The cubic root of 214890305 is about 598.9707400124.

The spelling of 214890305 in words is "two hundred fourteen million, eight hundred ninety thousand, three hundred five".