20266043 has 8 divisors (see below), whose sum is σ = 23374560. Its totient is φ = 17210880.

The previous prime is 20266039. The next prime is 20266063. The reversal of 20266043 is 34066202.

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 20266043 - 2² = 20266039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20266003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12518 + ... + 14043.

It is an arithmetic number, because the mean of its divisors is an integer number (2921820).

Almost surely, 2^20266043 is an apocalyptic number.

20266043 is a deficient number, since it is larger than the sum of its proper divisors (3108517).

20266043 is a wasteful number, since it uses less digits than its factorization.

20266043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26677.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 20266043 is about 4501.7822026393. The cubic root of 20266043 is about 272.6400503335.

The spelling of 20266043 in words is "twenty million, two hundred sixty-six thousand, forty-three".