20026005 has 8 divisors (see below), whose sum is σ = 32041632. Its totient is φ = 10680528.

The previous prime is 20026001. The next prime is 20026007. The reversal of 20026005 is 50062002.

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

It is not a de Polignac number, because 20026005 - 2² = 20026001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 1335067 = 20026005 / (2 + 0 + 0 + 2 + 6 + 0 + 0 + 5).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20026001) 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, 667519 + ... + 667548.

It is an arithmetic number, because the mean of its divisors is an integer number (4005204).

Almost surely, 2^20026005 is an apocalyptic number.

It is an amenable number.

20026005 is a deficient number, since it is larger than the sum of its proper divisors (12015627).

20026005 is a wasteful number, since it uses less digits than its factorization.

20026005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335075.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20026005 is about 4475.0424578991. The cubic root of 20026005 is about 271.5593580895.

Adding to 20026005 its reverse (50062002), we get a palindrome (70088007).

The spelling of 20026005 in words is "twenty million, twenty-six thousand, five".