2291360256 has 60 divisors (see below), whose sum is σ = 6613034142. Its totient is φ = 763785216.

The previous prime is 2291360237. The next prime is 2291360299. The reversal of 2291360256 is 6520631922.

2291360256 is a `hidden beast` number, since 2 + 291 + 360 + 2 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2281017600 + 10342656 = 47760^2 + 3216^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2291360256.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244021 + ... + 253236.

Almost surely, 2^2291360256 is an apocalyptic number.

It is an amenable number.

2291360256 is an abundant number, since it is smaller than the sum of its proper divisors (4321673886).

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

2291360256 is an equidigital number, since it uses as much as digits as its factorization.

2291360256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497281 (or 497262 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2291360256 is about 47868.1549257959. The cubic root of 2291360256 is about 1318.3512196424.

The spelling of 2291360256 in words is "two billion, two hundred ninety-one million, three hundred sixty thousand, two hundred fifty-six".