2598720984 has 96 divisors (see below), whose sum is σ = 7205552640. Its totient is φ = 845880000.

The previous prime is 2598720977. The next prime is 2598721007. The reversal of 2598720984 is 4890278952.

It is a self number, because there is not a number n which added to its sum of digits gives 2598720984.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 544609 + ... + 549359.

It is an arithmetic number, because the mean of its divisors is an integer number (75057840).

Almost surely, 2^2598720984 is an apocalyptic number.

2598720984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2598720984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3602776320).

2598720984 is an abundant number, since it is smaller than the sum of its proper divisors (4606831656).

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

2598720984 is a wasteful number, since it uses less digits than its factorization.

2598720984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4941 (or 4934 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 2598720984 is about 50977.6518093959. The cubic root of 2598720984 is about 1374.8433512341.

It can be divided in two parts, 25987 and 20984, that added together give a triangular number (46971 = T₃₀₆).

The spelling of 2598720984 in words is "two billion, five hundred ninety-eight million, seven hundred twenty thousand, nine hundred eighty-four".