2265860 has 24 divisors (see below), whose sum is σ = 4787160. Its totient is φ = 900864.

The previous prime is 2265841. The next prime is 2265869. The reversal of 2265860 is 685622.

It can be written as a sum of positive squares in 4 ways, for example, as 322624 + 1943236 = 568^2 + 1394^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2265869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5336 + ... + 5744.

It is an arithmetic number, because the mean of its divisors is an integer number (199465).

2^2265860 is an apocalyptic number.

2265860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2265860 is an abundant number, since it is smaller than the sum of its proper divisors (2521300).

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

2265860 is a wasteful number, since it uses less digits than its factorization.

2265860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2265860 is about 1505.2773830760. The cubic root of 2265860 is about 131.3442376876.

It can be divided in two parts, 2265 and 860, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2265860 in words is "two million, two hundred sixty-five thousand, eight hundred sixty".