3525220 has 12 divisors (see below), whose sum is σ = 7403004. Its totient is φ = 1410080.

The previous prime is 3525209. The next prime is 3525229. The reversal of 3525220 is 225253.

3525220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1653796 + 1871424 = 1286^2 + 1368^2 .

It is not an unprimeable number, because it can be changed into a prime (3525229) 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 3 ways as a sum of consecutive naturals, for example, 88111 + ... + 88150.

It is an arithmetic number, because the mean of its divisors is an integer number (616917).

Almost surely, 2^3525220 is an apocalyptic number.

It is an amenable number.

3525220 is an abundant number, since it is smaller than the sum of its proper divisors (3877784).

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

3525220 is a wasteful number, since it uses less digits than its factorization.

3525220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176270 (or 176268 counting only the distinct ones).

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

The square root of 3525220 is about 1877.5569232383. The cubic root of 3525220 is about 152.1932560328.

The spelling of 3525220 in words is "three million, five hundred twenty-five thousand, two hundred twenty".