2981047988 has 12 divisors (see below), whose sum is σ = 5523706692. Its totient is φ = 1402846080.

The previous prime is 2981047957. The next prime is 2981047999. The reversal of 2981047988 is 8897401892.

It can be written as a sum of positive squares in 2 ways, for example, as 2592642724 + 388405264 = 50918^2 + 19708^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21919403 + ... + 21919538.

It is an arithmetic number, because the mean of its divisors is an integer number (460308891).

Almost surely, 2^2981047988 is an apocalyptic number.

It is an amenable number.

2981047988 is a deficient number, since it is larger than the sum of its proper divisors (2542658704).

2981047988 is a wasteful number, since it uses less digits than its factorization.

2981047988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43838962 (or 43838960 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 56.

The square root of 2981047988 is about 54598.9742394489. The cubic root of 2981047988 is about 1439.2060933734.

The spelling of 2981047988 in words is "two billion, nine hundred eighty-one million, forty-seven thousand, nine hundred eighty-eight".