20826846 has 24 divisors (see below), whose sum is σ = 45208800. Its totient is φ = 6929376.

The previous prime is 20826809. The next prime is 20826859. The reversal of 20826846 is 64862802.

It is a self number, because there is not a number n which added to its sum of digits gives 20826846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18331 + ... + 19433.

It is an arithmetic number, because the mean of its divisors is an integer number (1883700).

Almost surely, 2^20826846 is an apocalyptic number.

20826846 is an abundant number, since it is smaller than the sum of its proper divisors (24381954).

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

20826846 is a wasteful number, since it uses less digits than its factorization.

20826846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160 (or 2157 counting only the distinct ones).

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

The square root of 20826846 is about 4563.6439387840. The cubic root of 20826846 is about 275.1320401725.

The spelling of 20826846 in words is "twenty million, eight hundred twenty-six thousand, eight hundred forty-six".