2104111540 has 48 divisors (see below), whose sum is σ = 4452371280. Its totient is φ = 835246080.

The previous prime is 2104111511. The next prime is 2104111549. The reversal of 2104111540 is 451114012.

It can be written as a sum of positive squares in 8 ways, for example, as 4822416 + 2099289124 = 2196^2 + 45818^2 .

It is a super-2 number, since 2×2104111540² = 8854570745522343200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104111549) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1982610 + ... + 1983670.

It is an arithmetic number, because the mean of its divisors is an integer number (92757735).

Almost surely, 2^2104111540 is an apocalyptic number.

2104111540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104111540 is an abundant number, since it is smaller than the sum of its proper divisors (2348259740).

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

2104111540 is a wasteful number, since it uses less digits than its factorization.

2104111540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732 (or 1730 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2104111540 is about 45870.5955923836. The cubic root of 2104111540 is about 1281.4143586415.

Adding to 2104111540 its reverse (451114012), we get a palindrome (2555225552).

The spelling of 2104111540 in words is "two billion, one hundred four million, one hundred eleven thousand, five hundred forty".