20040826 has 8 divisors (see below), whose sum is σ = 32373684. Its totient is φ = 9249600.

The previous prime is 20040817. The next prime is 20040829. The reversal of 20040826 is 62804002.

It can be written as a sum of positive squares in 2 ways, for example, as 14447601 + 5593225 = 3801^2 + 2365^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20040797 and 20040806.

It is not an unprimeable number, because it can be changed into a prime (20040829) 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 in 3 ways as a sum of consecutive naturals, for example, 385375 + ... + 385426.

Almost surely, 2^20040826 is an apocalyptic number.

20040826 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20040826 is a deficient number, since it is larger than the sum of its proper divisors (12332858).

20040826 is a wasteful number, since it uses less digits than its factorization.

20040826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770816.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 20040826 is about 4476.6981135654. The cubic root of 20040826 is about 271.6263341498.

Adding to 20040826 its reverse (62804002), we get a palindrome (82844828).

The spelling of 20040826 in words is "twenty million, forty thousand, eight hundred twenty-six".