20026343 has 4 divisors (see below), whose sum is σ = 20149368. Its totient is φ = 19903320.

The previous prime is 20026339. The next prime is 20026373. The reversal of 20026343 is 34362002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20026343 - 2² = 20026339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20026313) 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, 61268 + ... + 61593.

It is an arithmetic number, because the mean of its divisors is an integer number (5037342).

Almost surely, 2^20026343 is an apocalyptic number.

20026343 is a deficient number, since it is larger than the sum of its proper divisors (123025).

20026343 is a wasteful number, since it uses less digits than its factorization.

20026343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123024.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 20026343 is about 4475.0802227446. The cubic root of 20026343 is about 271.5608858788.

Adding to 20026343 its reverse (34362002), we get a palindrome (54388345).

The spelling of 20026343 in words is "twenty million, twenty-six thousand, three hundred forty-three".