20088426 has 16 divisors (see below), whose sum is σ = 40226400. Its totient is φ = 6687888.

The previous prime is 20088391. The next prime is 20088427. The reversal of 20088426 is 62488002.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20088393 and 20088402.

It is not an unprimeable number, because it can be changed into a prime (20088427) 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 7 ways as a sum of consecutive naturals, for example, 5145 + ... + 8163.

It is an arithmetic number, because the mean of its divisors is an integer number (2514150).

Almost surely, 2^20088426 is an apocalyptic number.

20088426 is an abundant number, since it is smaller than the sum of its proper divisors (20137974).

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

20088426 is a wasteful number, since it uses less digits than its factorization.

20088426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 20088426 is about 4482.0113788343. The cubic root of 20088426 is about 271.8412153554.

The spelling of 20088426 in words is "twenty million, eighty-eight thousand, four hundred twenty-six".