20480266 has 8 divisors (see below), whose sum is σ = 30796740. Its totient is φ = 10214688.

The previous prime is 20480249. The next prime is 20480269. The reversal of 20480266 is 66208402.

It can be written as a sum of positive squares in 2 ways, for example, as 19316025 + 1164241 = 4395^2 + 1079^2 .

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 (20480269) 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, 11701 + ... + 13336.

Almost surely, 2^20480266 is an apocalyptic number.

20480266 is a deficient number, since it is larger than the sum of its proper divisors (10316474).

20480266 is a wasteful number, since it uses less digits than its factorization.

20480266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25448.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20480266 is about 4525.5127886241. The cubic root of 20480266 is about 273.5973359777.

Adding to 20480266 its reverse (66208402), we get a palindrome (86688668).

The spelling of 20480266 in words is "twenty million, four hundred eighty thousand, two hundred sixty-six".