2271856328 has 64 divisors (see below), whose sum is σ = 5034163200. Its totient is φ = 940584960.

The previous prime is 2271856313. The next prime is 2271856337. The reversal of 2271856328 is 8236581722.

It is a super-2 number, since 2×2271856328² = 10322662350147287168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1750976 + ... + 1752272.

It is an arithmetic number, because the mean of its divisors is an integer number (78658800).

Almost surely, 2^2271856328 is an apocalyptic number.

2271856328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2271856328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2517081600).

2271856328 is an abundant number, since it is smaller than the sum of its proper divisors (2762306872).

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

2271856328 is a wasteful number, since it uses less digits than its factorization.

2271856328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350 (or 2346 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 2271856328 is about 47663.9940416243. The cubic root of 2271856328 is about 1314.5999791425.

The spelling of 2271856328 in words is "two billion, two hundred seventy-one million, eight hundred fifty-six thousand, three hundred twenty-eight".