260309280 has 192 divisors, whose sum is σ = 1022450688. Its totient is φ = 54082560.

The previous prime is 260309261. The next prime is 260309281. The reversal of 260309280 is 82903062.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (260309281) 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, 33439 + ... + 40481.

It is an arithmetic number, because the mean of its divisors is an integer number (5325264).

Almost surely, 2^260309280 is an apocalyptic number.

260309280 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 260309280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511225344).

260309280 is an abundant number, since it is smaller than the sum of its proper divisors (762141408).

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

260309280 is a wasteful number, since it uses less digits than its factorization.

260309280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7079 (or 7071 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 260309280 is about 16134.1030119434. The cubic root of 260309280 is about 638.5034040831.

The spelling of 260309280 in words is "two hundred sixty million, three hundred nine thousand, two hundred eighty".