3840981273 has 12 divisors (see below), whose sum is σ = 5563985700. Its totient is φ = 2553314976.

The previous prime is 3840981259. The next prime is 3840981281. The reversal of 3840981273 is 3721890483.

3840981273 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2023920144 + 1817061129 = 44988^2 + 42627^2 .

It is not a de Polignac number, because 3840981273 - 2⁸ = 3840981017 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3840981253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 608286 + ... + 614567.

It is an arithmetic number, because the mean of its divisors is an integer number (463665475).

Almost surely, 2^3840981273 is an apocalyptic number.

It is an amenable number.

3840981273 is a deficient number, since it is larger than the sum of its proper divisors (1723004427).

3840981273 is a wasteful number, since it uses less digits than its factorization.

3840981273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223208 (or 1223205 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 3840981273 is about 61975.6506460400. The cubic root of 3840981273 is about 1566.0804323959.

The spelling of 3840981273 in words is "three billion, eight hundred forty million, nine hundred eighty-one thousand, two hundred seventy-three".