3530205 has 36 divisors (see below), whose sum is σ = 7122492. Its totient is φ = 1612800.

The previous prime is 3530179. The next prime is 3530209. The reversal of 3530205 is 5020353.

It can be written as a sum of positive squares in 2 ways, for example, as 2752281 + 777924 = 1659^2 + 882^2 .

It is not a de Polignac number, because 3530205 - 2⁸ = 3529949 is a prime.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3530209) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1405 + ... + 3005.

It is an arithmetic number, because the mean of its divisors is an integer number (197847).

Almost surely, 2^3530205 is an apocalyptic number.

3530205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3530205 is an abundant number, since it is smaller than the sum of its proper divisors (3592287).

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

3530205 is a wasteful number, since it uses less digits than its factorization.

3530205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626 (or 1616 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 3530205 is about 1878.8839772588. The cubic root of 3530205 is about 152.2649608762.

Adding to 3530205 its reverse (5020353), we get a palindrome (8550558).

The spelling of 3530205 in words is "three million, five hundred thirty thousand, two hundred five".