20826208 has 36 divisors (see below), whose sum is σ = 44409708. Its totient is φ = 9609600.

The previous prime is 20826199. The next prime is 20826209. The reversal of 20826208 is 80262802.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20826209) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3483 + ... + 7333.

It is an arithmetic number, because the mean of its divisors is an integer number (1233603).

Almost surely, 2^20826208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20826208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22204854).

20826208 is an abundant number, since it is smaller than the sum of its proper divisors (23583500).

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

20826208 is a wasteful number, since it uses less digits than its factorization.

20826208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887 (or 3866 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 20826208 is about 4563.5740379663. The cubic root of 20826208 is about 275.1292307212.

The spelling of 20826208 in words is "twenty million, eight hundred twenty-six thousand, two hundred eight".