3804520 has 32 divisors (see below), whose sum is σ = 8618400. Its totient is φ = 1511488.

The previous prime is 3804517. The next prime is 3804527. The reversal of 3804520 is 254083.

3804520 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3804491 and 3804500.

It is not an unprimeable number, because it can be changed into a prime (3804527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8871 + ... + 9289.

It is an arithmetic number, because the mean of its divisors is an integer number (269325).

Almost surely, 2^3804520 is an apocalyptic number.

It is an amenable number.

3804520 is an abundant number, since it is smaller than the sum of its proper divisors (4813880).

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

3804520 is a wasteful number, since it uses less digits than its factorization.

3804520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 3804520 is about 1950.5178799488. The cubic root of 3804520 is about 156.1109226447.

It can be divided in two parts, 380 and 4520, that added together give a square (4900 = 70²).

The spelling of 3804520 in words is "three million, eight hundred four thousand, five hundred twenty".