3525040 has 40 divisors (see below), whose sum is σ = 8280720. Its totient is φ = 1395456.

The previous prime is 3525031. The next prime is 3525043. The reversal of 3525040 is 405253.

It is a happy number.

3525040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 3524999 and 3525017.

It is not an unprimeable number, because it can be changed into a prime (3525043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10962 + ... + 11278.

It is an arithmetic number, because the mean of its divisors is an integer number (207018).

Almost surely, 2^3525040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3525040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4140360).

3525040 is an abundant number, since it is smaller than the sum of its proper divisors (4755680).

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

3525040 is a wasteful number, since it uses less digits than its factorization.

3525040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 3525040 is about 1877.5089879945. The cubic root of 3525040 is about 152.1906656268.

The spelling of 3525040 in words is "three million, five hundred twenty-five thousand, forty".