260311340 has 48 divisors (see below), whose sum is σ = 570011904. Its totient is φ = 99744000.

The previous prime is 260311321. The next prime is 260311349. The reversal of 260311340 is 43113062.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (260311349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60542 + ... + 64698.

It is an arithmetic number, because the mean of its divisors is an integer number (11875248).

Almost surely, 2^260311340 is an apocalyptic number.

260311340 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 260311340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285005952).

260311340 is an abundant number, since it is smaller than the sum of its proper divisors (309700564).

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

260311340 is a wasteful number, since it uses less digits than its factorization.

260311340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298 (or 4296 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 260311340 is about 16134.1668517466. The cubic root of 260311340 is about 638.5050883790.

The spelling of 260311340 in words is "two hundred sixty million, three hundred eleven thousand, three hundred forty".