2978144844 has 24 divisors (see below), whose sum is σ = 7036968960. Its totient is φ = 980148624.

The previous prime is 2978144843. The next prime is 2978144849. The reversal of 2978144844 is 4484418792.

It is not an unprimeable number, because it can be changed into a prime (2978144843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569804 + ... + 1571699.

It is an arithmetic number, because the mean of its divisors is an integer number (293207040).

Almost surely, 2^2978144844 is an apocalyptic number.

It is an amenable number.

2978144844 is an abundant number, since it is smaller than the sum of its proper divisors (4058824116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2978144844 is a wasteful number, since it uses less digits than its factorization.

2978144844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141589 (or 3141587 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 51.

The square root of 2978144844 is about 54572.3816962390. The cubic root of 2978144844 is about 1438.7387432301.

The spelling of 2978144844 in words is "two billion, nine hundred seventy-eight million, one hundred forty-four thousand, eight hundred forty-four".