4040541 has 24 divisors (see below), whose sum is σ = 6135480. Its totient is φ = 2558976.

The previous prime is 4040527. The next prime is 4040549. The reversal of 4040541 is 1450404.

It can be written as a sum of positive squares in 4 ways, for example, as 60516 + 3980025 = 246^2 + 1995^2 .

It is not a de Polignac number, because 4040541 - 2¹¹ = 4038493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29425 + ... + 29561.

It is an arithmetic number, because the mean of its divisors is an integer number (255645).

Almost surely, 2^4040541 is an apocalyptic number.

It is an amenable number.

4040541 is a deficient number, since it is larger than the sum of its proper divisors (2094939).

4040541 is a wasteful number, since it uses less digits than its factorization.

4040541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 4040541 is about 2010.1096984991. The cubic root of 4040541 is about 159.2745937354.

Adding to 4040541 its reverse (1450404), we get a palindrome (5490945).

The spelling of 4040541 in words is "four million, forty thousand, five hundred forty-one".