20266323 has 32 divisors (see below), whose sum is σ = 34283520. Its totient is φ = 10342560.

The previous prime is 20266313. The next prime is 20266327. The reversal of 20266323 is 32366202.

It is not a de Polignac number, because 20266323 - 2⁸ = 20266067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20266293 and 20266302.

It is not an unprimeable number, because it can be changed into a prime (20266327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12886 + ... + 14372.

It is an arithmetic number, because the mean of its divisors is an integer number (1071360).

Almost surely, 2^20266323 is an apocalyptic number.

20266323 is a deficient number, since it is larger than the sum of its proper divisors (14017197).

20266323 is a wasteful number, since it uses less digits than its factorization.

20266323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 20266323 is about 4501.8133013265. The cubic root of 20266323 is about 272.6413059455.

The spelling of 20266323 in words is "twenty million, two hundred sixty-six thousand, three hundred twenty-three".