20682426 has 8 divisors (see below), whose sum is σ = 41364864. Its totient is φ = 6894140.

The previous prime is 20682419. The next prime is 20682427. The reversal of 20682426 is 62428602.

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

20682426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20682393 and 20682402.

It is not an unprimeable number, because it can be changed into a prime (20682427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1723530 + ... + 1723541.

It is an arithmetic number, because the mean of its divisors is an integer number (5170608).

Almost surely, 2^20682426 is an apocalyptic number.

20682426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20682426 is a wasteful number, since it uses less digits than its factorization.

20682426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447076.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 20682426 is about 4547.7935309334. The cubic root of 20682426 is about 274.4946133826.

The spelling of 20682426 in words is "twenty million, six hundred eighty-two thousand, four hundred twenty-six".