2448772281 has 6 divisors (see below), whose sum is σ = 3537115530. Its totient is φ = 1632514848.

The previous prime is 2448772247. The next prime is 2448772283. The reversal of 2448772281 is 1822778442.

2448772281 is a `hidden beast` number, since 24 + 487 + 72 + 2 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2448765225 + 7056 = 49485^2 + 84^2 .

It is not a de Polignac number, because 2448772281 - 2⁷ = 2448772153 is a prime.

It is a super-2 number, since 2×2448772281² = 11992971368387885922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2448772283) 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 5 ways as a sum of consecutive naturals, for example, 136042896 + ... + 136042913.

It is an arithmetic number, because the mean of its divisors is an integer number (589519255).

Almost surely, 2^2448772281 is an apocalyptic number.

It is an amenable number.

2448772281 is a deficient number, since it is larger than the sum of its proper divisors (1088343249).

2448772281 is a wasteful number, since it uses less digits than its factorization.

2448772281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272085815 (or 272085812 counting only the distinct ones).

The product of its digits is 401408, while the sum is 45.

The square root of 2448772281 is about 49485.0712942803. The cubic root of 2448772281 is about 1347.8745302670.

The spelling of 2448772281 in words is "two billion, four hundred forty-eight million, seven hundred seventy-two thousand, two hundred eighty-one".