20008426 has 8 divisors (see below), whose sum is σ = 30046464. Its totient is φ = 9992940.

The previous prime is 20008381. The next prime is 20008447. The reversal of 20008426 is 62480002.

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

It is a super-2 number, since 2×20008426² = 800674221994952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20008397 and 20008406.

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, 3210 + ... + 7093.

It is an arithmetic number, because the mean of its divisors is an integer number (3755808).

Almost surely, 2^20008426 is an apocalyptic number.

20008426 is a deficient number, since it is larger than the sum of its proper divisors (10038038).

20008426 is a wasteful number, since it uses less digits than its factorization.

20008426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11276.

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

The square root of 20008426 is about 4473.0779112374. The cubic root of 20008426 is about 271.4798757789.

Adding to 20008426 its reverse (62480002), we get a palindrome (82488428).

The spelling of 20008426 in words is "twenty million, eight thousand, four hundred twenty-six".