3040205 has 12 divisors (see below), whose sum is σ = 4244220. Its totient is φ = 2084544.

The previous prime is 3040189. The next prime is 3040217. The reversal of 3040205 is 5020403.

It can be written as a sum of positive squares in 2 ways, for example, as 470596 + 2569609 = 686^2 + 1603^2 .

It is not a de Polignac number, because 3040205 - 2⁴ = 3040189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3040205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5960 + ... + 6449.

It is an arithmetic number, because the mean of its divisors is an integer number (353685).

Almost surely, 2^3040205 is an apocalyptic number.

3040205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3040205 is a deficient number, since it is larger than the sum of its proper divisors (1204015).

3040205 is a wasteful number, since it uses less digits than its factorization.

3040205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12428 (or 12421 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 3040205 is about 1743.6183642070. The cubic root of 3040205 is about 144.8663850392.

Adding to 3040205 its reverse (5020403), we get a palindrome (8060608).

The spelling of 3040205 in words is "three million, forty thousand, two hundred five".