20130260 has 12 divisors (see below), whose sum is σ = 42273588. Its totient is φ = 8052096.

The previous prime is 20130251. The next prime is 20130281. The reversal of 20130260 is 6203102.

It can be written as a sum of positive squares in 2 ways, for example, as 11916304 + 8213956 = 3452^2 + 2866^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503237 + ... + 503276.

It is an arithmetic number, because the mean of its divisors is an integer number (3522799).

Almost surely, 2^20130260 is an apocalyptic number.

20130260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20130260 is an abundant number, since it is smaller than the sum of its proper divisors (22143328).

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

20130260 is a wasteful number, since it uses less digits than its factorization.

20130260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006522 (or 1006520 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20130260 is about 4486.6758296093. The cubic root of 20130260 is about 272.0297869628.

Adding to 20130260 its reverse (6203102), we get a palindrome (26333362).

The spelling of 20130260 in words is "twenty million, one hundred thirty thousand, two hundred sixty".