260008840 has 128 divisors (see below), whose sum is σ = 732453120. Its totient is φ = 80870400.

The previous prime is 260008807. The next prime is 260008849. The reversal of 260008840 is 48800062.

It is a super-3 number, since 3×260008840³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 260008799 and 260008808.

It is not an unprimeable number, because it can be changed into a prime (260008849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221455 + ... + 222625.

It is an arithmetic number, because the mean of its divisors is an integer number (5722290).

Almost surely, 2^260008840 is an apocalyptic number.

260008840 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 260008840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366226560).

260008840 is an abundant number, since it is smaller than the sum of its proper divisors (472444280).

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

260008840 is a wasteful number, since it uses less digits than its factorization.

260008840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 260008840 is about 16124.7896110306. The cubic root of 260008840 is about 638.2576633089.

The spelling of 260008840 in words is "two hundred sixty million, eight thousand, eight hundred forty".