2272565856 has 144 divisors (see below), whose sum is σ = 6769695744. Its totient is φ = 666336000.

The previous prime is 2272565849. The next prime is 2272565873. The reversal of 2272565856 is 6585652722.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356941 + ... + 363251.

It is an arithmetic number, because the mean of its divisors is an integer number (47011776).

Almost surely, 2^2272565856 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 2272565856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3384847872).

2272565856 is an abundant number, since it is smaller than the sum of its proper divisors (4497129888).

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

2272565856 is a wasteful number, since it uses less digits than its factorization.

2272565856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6377 (or 6358 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 48.

The square root of 2272565856 is about 47671.4364793007. The cubic root of 2272565856 is about 1314.7368200153.

The spelling of 2272565856 in words is "two billion, two hundred seventy-two million, five hundred sixty-five thousand, eight hundred fifty-six".