20026443 has 8 divisors (see below), whose sum is σ = 27622800. Its totient is φ = 12890528.

The previous prime is 20026439. The next prime is 20026451. The reversal of 20026443 is 34462002.

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

It is a cyclic number.

It is not a de Polignac number, because 20026443 - 2² = 20026439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20026463) 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, 115008 + ... + 115181.

It is an arithmetic number, because the mean of its divisors is an integer number (3452850).

Almost surely, 2^20026443 is an apocalyptic number.

20026443 is a deficient number, since it is larger than the sum of its proper divisors (7596357).

20026443 is a wasteful number, since it uses less digits than its factorization.

20026443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230221.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 20026443 is about 4475.0913957147. The cubic root of 20026443 is about 271.5613378841.

Adding to 20026443 its reverse (34462002), we get a palindrome (54488445).

The spelling of 20026443 in words is "twenty million, twenty-six thousand, four hundred forty-three".