20826016 has 12 divisors (see below), whose sum is σ = 41001282. Its totient is φ = 10412992.

The previous prime is 20826011. The next prime is 20826019. The reversal of 20826016 is 61062802.

It can be written as a sum of positive squares in only one way, i.e., 16810000 + 4016016 = 4100^2 + 2004^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20826011) by changing a digit.

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 as a sum of consecutive naturals, namely, 325375 + ... + 325438.

Almost surely, 2^20826016 is an apocalyptic number.

It is an amenable number.

20826016 is a deficient number, since it is larger than the sum of its proper divisors (20175266).

20826016 is an equidigital number, since it uses as much as digits as its factorization.

20826016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650823 (or 650815 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20826016 is about 4563.5530017739. The cubic root of 20826016 is about 275.1283852324.

Adding to 20826016 its reverse (61062802), we get a palindrome (81888818).

The spelling of 20826016 in words is "twenty million, eight hundred twenty-six thousand, sixteen".