2256545388 has 96 divisors (see below), whose sum is σ = 5791564800. Its totient is φ = 680958976.

The previous prime is 2256545383. The next prime is 2256545407. The reversal of 2256545388 is 8835456522.

It is not an unprimeable number, because it can be changed into a prime (2256545383) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 563698 + ... + 567686.

It is an arithmetic number, because the mean of its divisors is an integer number (60328800).

Almost surely, 2^2256545388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2256545388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2895782400).

2256545388 is an abundant number, since it is smaller than the sum of its proper divisors (3535019412).

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

2256545388 is a wasteful number, since it uses less digits than its factorization.

2256545388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4119 (or 4117 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 48.

The square root of 2256545388 is about 47503.1092456062. The cubic root of 2256545388 is about 1311.6401165351.

The spelling of 2256545388 in words is "two billion, two hundred fifty-six million, five hundred forty-five thousand, three hundred eighty-eight".