2781260 has 24 divisors (see below), whose sum is σ = 5942160. Its totient is φ = 1093184.

The previous prime is 2781221. The next prime is 2781271. The reversal of 2781260 is 621872.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2 + ... + 2358.

It is an arithmetic number, because the mean of its divisors is an integer number (247590).

2^2781260 is an apocalyptic number.

2781260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2781260 is an abundant number, since it is smaller than the sum of its proper divisors (3160900).

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

2781260 is a wasteful number, since it uses less digits than its factorization.

2781260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425 (or 2423 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2781260 is about 1667.7110061399. The cubic root of 2781260 is about 140.6308267545.

It can be divided in two parts, 27812 and 60, that added together give a palindrome (27872).

The spelling of 2781260 in words is "two million, seven hundred eighty-one thousand, two hundred sixty".