2265291880 has 32 divisors (see below), whose sum is σ = 5100971040. Its totient is φ = 905394240.

The previous prime is 2265291869. The next prime is 2265291887. The reversal of 2265291880 is 881925622.

It is not an unprimeable number, because it can be changed into a prime (2265291887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29707 + ... + 73573.

It is an arithmetic number, because the mean of its divisors is an integer number (159405345).

Almost surely, 2^2265291880 is an apocalyptic number.

2265291880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2265291880 is an abundant number, since it is smaller than the sum of its proper divisors (2835679160).

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

2265291880 is a wasteful number, since it uses less digits than its factorization.

2265291880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45169 (or 45165 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 2265291880 is about 47595.0825191006. The cubic root of 2265291880 is about 1313.3325943863.

The spelling of 2265291880 in words is "two billion, two hundred sixty-five million, two hundred ninety-one thousand, eight hundred eighty".