2278282805 has 8 divisors (see below), whose sum is σ = 2734287192. Its totient is φ = 1822394368.

The previous prime is 2278282801. The next prime is 2278282813. The reversal of 2278282805 is 5082828722.

It can be written as a sum of positive squares in 4 ways, for example, as 52896529 + 2225386276 = 7273^2 + 47174^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2278282805 - 2² = 2278282801 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278282801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22589 + ... + 71181.

It is an arithmetic number, because the mean of its divisors is an integer number (341785899).

Almost surely, 2^2278282805 is an apocalyptic number.

It is an amenable number.

2278282805 is a deficient number, since it is larger than the sum of its proper divisors (456004387).

2278282805 is an equidigital number, since it uses as much as digits as its factorization.

2278282805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57975.

The product of its (nonzero) digits is 286720, while the sum is 44.

The square root of 2278282805 is about 47731.3608123632. The cubic root of 2278282805 is about 1315.8383633622.

The spelling of 2278282805 in words is "two billion, two hundred seventy-eight million, two hundred eighty-two thousand, eight hundred five".