2981042842 has 8 divisors (see below), whose sum is σ = 4580626932. Its totient is φ = 1454167200.

The previous prime is 2981042797. The next prime is 2981042843. The reversal of 2981042842 is 2482401892.

It can be written as a sum of positive squares in 2 ways, for example, as 2676924121 + 304118721 = 51739^2 + 17439^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2981042795 and 2981042804.

It is not an unprimeable number, because it can be changed into a prime (2981042843) 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 3 ways as a sum of consecutive naturals, for example, 18177009 + ... + 18177172.

Almost surely, 2^2981042842 is an apocalyptic number.

2981042842 is a deficient number, since it is larger than the sum of its proper divisors (1599584090).

2981042842 is a wasteful number, since it uses less digits than its factorization.

2981042842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36354224.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 2981042842 is about 54598.9271140011. The cubic root of 2981042842 is about 1439.2052652353.

The spelling of 2981042842 in words is "two billion, nine hundred eighty-one million, forty-two thousand, eight hundred forty-two".