20230266 has 16 divisors (see below), whose sum is σ = 46240704. Its totient is φ = 5780064.

The previous prime is 20230247. The next prime is 20230267. The reversal of 20230266 is 66203202.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20230267) 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, 240795 + ... + 240878.

It is an arithmetic number, because the mean of its divisors is an integer number (2890044).

Almost surely, 2^20230266 is an apocalyptic number.

20230266 is an abundant number, since it is smaller than the sum of its proper divisors (26010438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20230266 is a wasteful number, since it uses less digits than its factorization.

20230266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481685.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20230266 is about 4497.8067988743. The cubic root of 20230266 is about 272.4795192643.

Adding to 20230266 its reverse (66203202), we get a palindrome (86433468).

The spelling of 20230266 in words is "twenty million, two hundred thirty thousand, two hundred sixty-six".