2265946218 has 32 divisors (see below), whose sum is σ = 5331640320. Its totient is φ = 710884800.

The previous prime is 2265946171. The next prime is 2265946219. The reversal of 2265946218 is 8126495622.

It is not an unprimeable number, because it can be changed into a prime (2265946219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1233258 + ... + 1235093.

It is an arithmetic number, because the mean of its divisors is an integer number (166613760).

Almost surely, 2^2265946218 is an apocalyptic number.

2265946218 is an abundant number, since it is smaller than the sum of its proper divisors (3065694102).

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

2265946218 is a wasteful number, since it uses less digits than its factorization.

2265946218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468379 (or 2468373 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 2265946218 is about 47601.9560312389. The cubic root of 2265946218 is about 1313.4590358839.

The spelling of 2265946218 in words is "two billion, two hundred sixty-five million, nine hundred forty-six thousand, two hundred eighteen".