2265816860 has 24 divisors (see below), whose sum is σ = 4775040816. Its totient is φ = 903121920.

The previous prime is 2265816829. The next prime is 2265816863. The reversal of 2265816860 is 686185622.

2265816860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265816863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194501 + ... + 205820.

It is an arithmetic number, because the mean of its divisors is an integer number (198960034).

Almost surely, 2^2265816860 is an apocalyptic number.

2265816860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2265816860 is an abundant number, since it is smaller than the sum of its proper divisors (2509223956).

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

2265816860 is a wasteful number, since it uses less digits than its factorization.

2265816860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400613 (or 400611 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 2265816860 is about 47600.5972651604. The cubic root of 2265816860 is about 1313.4340412237.

The spelling of 2265816860 in words is "two billion, two hundred sixty-five million, eight hundred sixteen thousand, eight hundred sixty".