20826244 has 24 divisors (see below), whose sum is σ = 37399320. Its totient is φ = 10143744.

The previous prime is 20826209. The next prime is 20826251. The reversal of 20826244 is 44262802.

It can be written as a sum of positive squares in 4 ways, for example, as 5522500 + 15303744 = 2350^2 + 3912^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40662 + ... + 41170.

It is an arithmetic number, because the mean of its divisors is an integer number (1558305).

Almost surely, 2^20826244 is an apocalyptic number.

It is an amenable number.

20826244 is a deficient number, since it is larger than the sum of its proper divisors (16573076).

20826244 is a wasteful number, since it uses less digits than its factorization.

20826244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 20826244 is about 4563.5779822416. The cubic root of 20826244 is about 275.1293892497.

The spelling of 20826244 in words is "twenty million, eight hundred twenty-six thousand, two hundred forty-four".