20682846 has 48 divisors (see below), whose sum is σ = 47814624. Its totient is φ = 6438912.

The previous prime is 20682803. The next prime is 20682847. The reversal of 20682846 is 64828602.

20682846 is nontrivially palindromic in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 20682846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20682847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78511 + ... + 78773.

It is an arithmetic number, because the mean of its divisors is an integer number (996138).

Almost surely, 2^20682846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20682846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23907312).

20682846 is an abundant number, since it is smaller than the sum of its proper divisors (27131778).

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

20682846 is a wasteful number, since it uses less digits than its factorization.

20682846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 20682846 is about 4547.8397069378. The cubic root of 20682846 is about 274.4964714328.

It can be divided in two parts, 20682 and 846, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 20682846 in words is "twenty million, six hundred eighty-two thousand, eight hundred forty-six".