20026680 has 64 divisors (see below), whose sum is σ = 63620640. Its totient is φ = 5025792.

The previous prime is 20026673. The next prime is 20026681. The reversal of 20026680 is 8662002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20026680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20026681) 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 15 ways as a sum of consecutive naturals, for example, 2869 + ... + 6948.

Almost surely, 2^20026680 is an apocalyptic number.

20026680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20026680 is an abundant number, since it is smaller than the sum of its proper divisors (43593960).

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

20026680 is a wasteful number, since it uses less digits than its factorization.

20026680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9848 (or 9844 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20026680 is about 4475.1178755425. The cubic root of 20026680 is about 271.5624091308.

Adding to 20026680 its reverse (8662002), we get a palindrome (28688682).

It can be divided in two parts, 20026 and 680, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 20026680 in words is "twenty million, twenty-six thousand, six hundred eighty".