2266781356 has 48 divisors (see below), whose sum is σ = 4667342400. Its totient is φ = 962814720.

The previous prime is 2266781351. The next prime is 2266781383. The reversal of 2266781356 is 6531876622.

It is not an unprimeable number, because it can be changed into a prime (2266781351) 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, 147726 + ... + 162346.

It is an arithmetic number, because the mean of its divisors is an integer number (97236300).

Almost surely, 2^2266781356 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 2266781356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2333671200).

2266781356 is an abundant number, since it is smaller than the sum of its proper divisors (2400561044).

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

2266781356 is a wasteful number, since it uses less digits than its factorization.

2266781356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14759 (or 14743 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The square root of 2266781356 is about 47610.7273206365. The cubic root of 2266781356 is about 1313.6203790512.

The spelling of 2266781356 in words is "two billion, two hundred sixty-six million, seven hundred eighty-one thousand, three hundred fifty-six".