2991384441 has 12 divisors (see below), whose sum is σ = 4327899732. Its totient is φ = 1991020416.

The previous prime is 2991384421. The next prime is 2991384469. The reversal of 2991384441 is 1444831992.

It can be written as a sum of positive squares in 2 ways, for example, as 49406841 + 2941977600 = 7029^2 + 54240^2 .

It is not a de Polignac number, because 2991384441 - 2¹⁵ = 2991351673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2991384421) 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, 263796 + ... + 274901.

It is an arithmetic number, because the mean of its divisors is an integer number (360658311).

Almost surely, 2^2991384441 is an apocalyptic number.

It is an amenable number.

2991384441 is a deficient number, since it is larger than the sum of its proper divisors (1336515291).

2991384441 is a wasteful number, since it uses less digits than its factorization.

2991384441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539320 (or 539317 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 2991384441 is about 54693.5502687474. The cubic root of 2991384441 is about 1440.8676036084.

The spelling of 2991384441 in words is "two billion, nine hundred ninety-one million, three hundred eighty-four thousand, four hundred forty-one".