2981644006 has 48 divisors (see below), whose sum is σ = 5039465760. Its totient is φ = 1321689600.

The previous prime is 2981643997. The next prime is 2981644007. The reversal of 2981644006 is 6004461892.

2981644006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2981644006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981644007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1665760 + ... + 1667548.

It is an arithmetic number, because the mean of its divisors is an integer number (104988870).

Almost surely, 2^2981644006 is an apocalyptic number.

2981644006 is a deficient number, since it is larger than the sum of its proper divisors (2057821754).

2981644006 is a wasteful number, since it uses less digits than its factorization.

2981644006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981 (or 1970 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 2981644006 is about 54604.4321094909. The cubic root of 2981644006 is about 1439.3020032212.

The spelling of 2981644006 in words is "two billion, nine hundred eighty-one million, six hundred forty-four thousand, six".