20826832 has 20 divisors (see below), whose sum is σ = 43456420. Its totient is φ = 9612288.

The previous prime is 20826809. The next prime is 20826859. The reversal of 20826832 is 23862802.

It can be written as a sum of positive squares in 2 ways, for example, as 3984016 + 16842816 = 1996^2 + 4104^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20826794 and 20826803.

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 3 ways as a sum of consecutive naturals, for example, 49857 + ... + 50272.

It is an arithmetic number, because the mean of its divisors is an integer number (2172821).

Almost surely, 2^20826832 is an apocalyptic number.

It is an amenable number.

20826832 is an abundant number, since it is smaller than the sum of its proper divisors (22629588).

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

20826832 is a wasteful number, since it uses less digits than its factorization.

20826832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100150 (or 100144 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 20826832 is about 4563.6424049218. The cubic root of 20826832 is about 275.1319785238.

The spelling of 20826832 in words is "twenty million, eight hundred twenty-six thousand, eight hundred thirty-two".