2104305520 has 20 divisors (see below), whose sum is σ = 4892510520. Its totient is φ = 841722176.

The previous prime is 2104305517. The next prime is 2104305523. The reversal of 2104305520 is 255034012.

It is an interprime number because it is at equal distance from previous prime (2104305517) and next prime (2104305523).

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 2104305491 and 2104305500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104305523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13151830 + ... + 13151989.

It is an arithmetic number, because the mean of its divisors is an integer number (244625526).

Almost surely, 2^2104305520 is an apocalyptic number.

2104305520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104305520 is an abundant number, since it is smaller than the sum of its proper divisors (2788205000).

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

2104305520 is a wasteful number, since it uses less digits than its factorization.

2104305520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26303832 (or 26303826 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2104305520 is about 45872.7099700901. The cubic root of 2104305520 is about 1281.4537356920.

Adding to 2104305520 its reverse (255034012), we get a palindrome (2359339532).

The spelling of 2104305520 in words is "two billion, one hundred four million, three hundred five thousand, five hundred twenty".