9040205 has 4 divisors (see below), whose sum is σ = 10848252. Its totient is φ = 7232160.

The previous prime is 9040201. The next prime is 9040223. The reversal of 9040205 is 5020409.

9040205 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5020409 = 41 ⋅122449.

It can be written as a sum of positive squares in 2 ways, for example, as 4726276 + 4313929 = 2174^2 + 2077^2 .

It is not a de Polignac number, because 9040205 - 2² = 9040201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9040201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904016 + ... + 904025.

It is an arithmetic number, because the mean of its divisors is an integer number (2712063).

Almost surely, 2^9040205 is an apocalyptic number.

It is an amenable number.

9040205 is a deficient number, since it is larger than the sum of its proper divisors (1808047).

9040205 is a wasteful number, since it uses less digits than its factorization.

9040205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808046.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 9040205 is about 3006.6933664742. The cubic root of 9040205 is about 208.3176621101.

The spelling of 9040205 in words is "nine million, forty thousand, two hundred five".