6405041 has 4 divisors (see below), whose sum is σ = 6411300. Its totient is φ = 6398784.

The previous prime is 6405031. The next prime is 6405043. The reversal of 6405041 is 1405046.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1405046 = 2 ⋅702523.

It can be written as a sum of positive squares in 2 ways, for example, as 3254416 + 3150625 = 1804^2 + 1775^2 .

It is a cyclic number.

It is not a de Polignac number, because 6405041 - 2¹⁰ = 6404017 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 (6405043) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1196 + ... + 3773.

It is an arithmetic number, because the mean of its divisors is an integer number (1602825).

Almost surely, 2^6405041 is an apocalyptic number.

It is an amenable number.

6405041 is a deficient number, since it is larger than the sum of its proper divisors (6259).

6405041 is a wasteful number, since it uses less digits than its factorization.

6405041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6258.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 6405041 is about 2530.8182471288. The cubic root of 6405041 is about 185.7122869044.

The spelling of 6405041 in words is "six million, four hundred five thousand, forty-one".