2104520 has 32 divisors (see below), whose sum is σ = 5166720. Its totient is φ = 765120.

The previous prime is 2104507. The next prime is 2104541. The reversal of 2104520 is 254012.

2104520 = T₉₁₅ + T₉₁₆ + ... + T₉₁₉.

It is a junction number, because it is equal to n+sod(n) for n = 2104495 and 2104504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1952 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (161460).

2^2104520 is an apocalyptic number.

2104520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104520 is an abundant number, since it is smaller than the sum of its proper divisors (3062200).

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

2104520 is a wasteful number, since it uses less digits than its factorization.

2104520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4805 (or 4801 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2104520 is about 1450.6963844995. The cubic root of 2104520 is about 128.1497271332.

Adding to 2104520 its reverse (254012), we get a palindrome (2358532).

The spelling of 2104520 in words is "two million, one hundred four thousand, five hundred twenty".