2265843920 has 40 divisors (see below), whose sum is σ = 5282057760. Its totient is φ = 903934080.

The previous prime is 2265843911. The next prime is 2265843947. The reversal of 2265843920 is 293485622.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7046 + ... + 67685.

It is an arithmetic number, because the mean of its divisors is an integer number (132051444).

Almost surely, 2^2265843920 is an apocalyptic number.

2265843920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2265843920 is an abundant number, since it is smaller than the sum of its proper divisors (3016213840).

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

2265843920 is a wasteful number, since it uses less digits than its factorization.

2265843920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75123 (or 75117 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 2265843920 is about 47600.8815044428. The cubic root of 2265843920 is about 1313.4392698580.

The spelling of 2265843920 in words is "two billion, two hundred sixty-five million, eight hundred forty-three thousand, nine hundred twenty".