260280240 has 160 divisors (see below), whose sum is σ = 926726400. Its totient is φ = 59765760.

The previous prime is 260280239. The next prime is 260280253. The reversal of 260280240 is 42082062.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 260280240.

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, 47566 + ... + 52754.

It is an arithmetic number, because the mean of its divisors is an integer number (5792040).

Almost surely, 2^260280240 is an apocalyptic number.

260280240 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 260280240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463363200).

260280240 is an abundant number, since it is smaller than the sum of its proper divisors (666446160).

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

260280240 is a wasteful number, since it uses less digits than its factorization.

260280240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5235 (or 5229 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 260280240 is about 16133.2030297768. The cubic root of 260280240 is about 638.4796594713.

The spelling of 260280240 in words is "two hundred sixty million, two hundred eighty thousand, two hundred forty".