2104564320 has 144 divisors (see below), whose sum is σ = 7209663552. Its totient is φ = 559042560.

The previous prime is 2104564313. The next prime is 2104564327. The reversal of 2104564320 is 234654012.

2104564320 is a `hidden beast` number, since 2 + 10 + 4 + 5 + 643 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2104564313) and next prime (2104564327).

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104564327) 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, 387544 + ... + 392936.

It is an arithmetic number, because the mean of its divisors is an integer number (50067108).

Almost surely, 2^2104564320 is an apocalyptic number.

2104564320 is a gapful number since it is divisible by the number (20) 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 2104564320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3604831776).

2104564320 is an abundant number, since it is smaller than the sum of its proper divisors (5105099232).

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

2104564320 is a wasteful number, since it uses less digits than its factorization.

2104564320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685 (or 5674 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2104564320 is about 45875.5307326248. The cubic root of 2104564320 is about 1281.5062671375.

The spelling of 2104564320 in words is "two billion, one hundred four million, five hundred sixty-four thousand, three hundred twenty".