20826834 has 16 divisors (see below), whose sum is σ = 47604288. Its totient is φ = 5950512.

The previous prime is 20826809. The next prime is 20826859. The reversal of 20826834 is 43862802.

It is an interprime number because it is at equal distance from previous prime (20826809) and next prime (20826859).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20826795 and 20826804.

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, 247897 + ... + 247980.

It is an arithmetic number, because the mean of its divisors is an integer number (2975268).

Almost surely, 2^20826834 is an apocalyptic number.

20826834 is an abundant number, since it is smaller than the sum of its proper divisors (26777454).

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

20826834 is a wasteful number, since it uses less digits than its factorization.

20826834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495889.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 20826834 is about 4563.6426240450. The cubic root of 20826834 is about 275.1319873307.

The spelling of 20826834 in words is "twenty million, eight hundred twenty-six thousand, eight hundred thirty-four".