260000000 has 144 divisors (see below), whose sum is σ = 698631024. Its totient is φ = 96000000.

The previous prime is 259999991. The next prime is 260000011. The reversal of 260000000 is 62.

260000000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 154157056 + 105842944 = 12416^2 + 10288^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19999994 + ... + 20000006.

Almost surely, 2^260000000 is an apocalyptic number.

260000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349315512).

260000000 is an abundant number, since it is smaller than the sum of its proper divisors (438631024).

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

260000000 is an frugal number, since it uses more digits than its factorization.

260000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 260000000 is about 16124.5154965971. The cubic root of 260000000 is about 638.2504298860.

Adding to 260000000 its reverse (62), we get a palindrome (260000062).

The spelling of 260000000 in words is "two hundred sixty million", and thus it is an aban number.