20120266 has 8 divisors (see below), whose sum is σ = 30277764. Its totient is φ = 10027680.

The previous prime is 20120263. The next prime is 20120281. The reversal of 20120266 is 66202102.

It can be written as a sum of positive squares in 2 ways, for example, as 20115225 + 5041 = 4485^2 + 71^2 .

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 (20120263) 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, 15445 + ... + 16696.

Almost surely, 2^20120266 is an apocalyptic number.

20120266 is a deficient number, since it is larger than the sum of its proper divisors (10157498).

20120266 is a wasteful number, since it uses less digits than its factorization.

20120266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32456.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20120266 is about 4485.5619491876. The cubic root of 20120266 is about 271.9847616175.

Adding to 20120266 its reverse (66202102), we get a palindrome (86322368).

The spelling of 20120266 in words is "twenty million, one hundred twenty thousand, two hundred sixty-six".