2280272781 has 16 divisors (see below), whose sum is σ = 3271987008. Its totient is φ = 1407302400.

The previous prime is 2280272773. The next prime is 2280272809. The reversal of 2280272781 is 1872720822.

It is not a de Polignac number, because 2280272781 - 2³ = 2280272773 is a prime.

It is a super-2 number, since 2×2280272781² = 10399287911538947922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2280272881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363375 + ... + 369596.

It is an arithmetic number, because the mean of its divisors is an integer number (204499188).

Almost surely, 2^2280272781 is an apocalyptic number.

It is an amenable number.

2280272781 is a deficient number, since it is larger than the sum of its proper divisors (991714227).

2280272781 is a wasteful number, since it uses less digits than its factorization.

2280272781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733052.

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 2280272781 is about 47752.2018445223. The cubic root of 2280272781 is about 1316.2213601162.

The spelling of 2280272781 in words is "two billion, two hundred eighty million, two hundred seventy-two thousand, seven hundred eighty-one".