3525620 has 24 divisors (see below), whose sum is σ = 8461824. Its totient is φ = 1208736.

The previous prime is 3525593. The next prime is 3525623. The reversal of 3525620 is 265253.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3525623) 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, 12452 + ... + 12731.

It is an arithmetic number, because the mean of its divisors is an integer number (352576).

Almost surely, 2^3525620 is an apocalyptic number.

It is an amenable number.

3525620 is an abundant number, since it is smaller than the sum of its proper divisors (4936204).

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

3525620 is a wasteful number, since it uses less digits than its factorization.

3525620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25199 (or 25197 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 3525620 is about 1877.6634416210. The cubic root of 3525620 is about 152.1990121747.

The spelling of 3525620 in words is "three million, five hundred twenty-five thousand, six hundred twenty".