20240266 has 8 divisors (see below), whose sum is σ = 30416580. Its totient is φ = 10101408.

The previous prime is 20240261. The next prime is 20240267. The reversal of 20240266 is 66204202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16573041 + 3667225 = 4071^2 + 1915^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20240261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7971 + ... + 10198.

Almost surely, 2^20240266 is an apocalyptic number.

20240266 is a deficient number, since it is larger than the sum of its proper divisors (10176314).

20240266 is a wasteful number, since it uses less digits than its factorization.

20240266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18728.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20240266 is about 4498.9183144396. The cubic root of 20240266 is about 272.5244082168.

Adding to 20240266 its reverse (66204202), we get a palindrome (86444468).

The spelling of 20240266 in words is "twenty million, two hundred forty thousand, two hundred sixty-six".