2256849216 has 70 divisors (see below), whose sum is σ = 6690023450. Its totient is φ = 752281344.

The previous prime is 2256849193. The next prime is 2256849289. The reversal of 2256849216 is 6129486522.

2256849216 is a `hidden beast` number, since 22 + 568 + 49 + 21 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1456185600 + 800663616 = 38160^2 + 28296^2 .

It is a super-3 number, since 3×2256849216³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 212491 + ... + 222858.

Almost surely, 2^2256849216 is an apocalyptic number.

It is an amenable number.

2256849216 is an abundant number, since it is smaller than the sum of its proper divisors (4433174234).

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

2256849216 is an equidigital number, since it uses as much as digits as its factorization.

2256849216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435373 (or 435354 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 2256849216 is about 47506.3071181080. The cubic root of 2256849216 is about 1311.6989816055.

The spelling of 2256849216 in words is "two billion, two hundred fifty-six million, eight hundred forty-nine thousand, two hundred sixteen".