20855214 has 24 divisors (see below), whose sum is σ = 45491472. Its totient is φ = 6904800.

The previous prime is 20855213. The next prime is 20855221. The reversal of 20855214 is 41255802.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20855213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1119 + ... + 6554.

It is an arithmetic number, because the mean of its divisors is an integer number (1895478).

Almost surely, 2^20855214 is an apocalyptic number.

20855214 is an abundant number, since it is smaller than the sum of its proper divisors (24636258).

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

20855214 is a wasteful number, since it uses less digits than its factorization.

20855214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832 (or 7829 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 20855214 is about 4566.7509237969. The cubic root of 20855214 is about 275.2569015289.

The spelling of 20855214 in words is "twenty million, eight hundred fifty-five thousand, two hundred fourteen".