20480260 has 36 divisors (see below), whose sum is σ = 44137548. Its totient is φ = 7979712.

The previous prime is 20480249. The next prime is 20480269. The reversal of 20480260 is 6208402.

It can be written as a sum of positive squares in 2 ways, for example, as 11128896 + 9351364 = 3336^2 + 3058^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20480269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147271 + ... + 147409.

It is an arithmetic number, because the mean of its divisors is an integer number (1226043).

Almost surely, 2^20480260 is an apocalyptic number.

20480260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20480260 is an abundant number, since it is smaller than the sum of its proper divisors (23657288).

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

20480260 is a wasteful number, since it uses less digits than its factorization.

20480260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 20480260 is about 4525.5121257157. The cubic root of 20480260 is about 273.5973092596.

Adding to 20480260 its reverse (6208402), we get a palindrome (26688662).

The spelling of 20480260 in words is "twenty million, four hundred eighty thousand, two hundred sixty".