2684320884 has 84 divisors (see below), whose sum is σ = 8049341664. Its totient is φ = 766942992.

The previous prime is 2684320841. The next prime is 2684320889. The reversal of 2684320884 is 4880234862.

It is a tau number, because it is divible by the number of its divisors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684320889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 45342 + ... + 86165.

It is an arithmetic number, because the mean of its divisors is an integer number (95825496).

Almost surely, 2^2684320884 is an apocalyptic number.

It is an amenable number.

2684320884 is an abundant number, since it is smaller than the sum of its proper divisors (5365020780).

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

2684320884 is a wasteful number, since it uses less digits than its factorization.

2684320884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131536 (or 131519 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The square root of 2684320884 is about 51810.4321927544. The cubic root of 2684320884 is about 1389.7760079347.

The spelling of 2684320884 in words is "two billion, six hundred eighty-four million, three hundred twenty thousand, eight hundred eighty-four".