20854286 has 16 divisors (see below), whose sum is σ = 33423360. Its totient is φ = 9729720.

The previous prime is 20854279. The next prime is 20854297. The reversal of 20854286 is 68245802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550 + ... + 6641.

It is an arithmetic number, because the mean of its divisors is an integer number (2088960).

Almost surely, 2^20854286 is an apocalyptic number.

20854286 is a deficient number, since it is larger than the sum of its proper divisors (12569074).

20854286 is a wasteful number, since it uses less digits than its factorization.

20854286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8279.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 20854286 is about 4566.6493187018. The cubic root of 20854286 is about 275.2528187418.

The spelling of 20854286 in words is "twenty million, eight hundred fifty-four thousand, two hundred eighty-six".