260008500 has 96 divisors (see below), whose sum is σ = 765378432. Its totient is φ = 68582400.

The previous prime is 260008499. The next prime is 260008531. The reversal of 260008500 is 5800062.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144607 + ... + 146393.

It is an arithmetic number, because the mean of its divisors is an integer number (7972692).

Almost surely, 2^260008500 is an apocalyptic number.

260008500 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 260008500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382689216).

260008500 is an abundant number, since it is smaller than the sum of its proper divisors (505369932).

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

260008500 is a wasteful number, since it uses less digits than its factorization.

260008500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 260008500 is about 16124.7790682539. The cubic root of 260008500 is about 638.2573851033.

Adding to 260008500 its reverse (5800062), we get a palindrome (265808562).

The spelling of 260008500 in words is "two hundred sixty million, eight thousand, five hundred".