6405441 has 8 divisors (see below), whose sum is σ = 9760704. Its totient is φ = 3660240.

The previous prime is 6405397. The next prime is 6405457. The reversal of 6405441 is 1445046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6405441 - 2⁹ = 6404929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6405461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152490 + ... + 152531.

It is an arithmetic number, because the mean of its divisors is an integer number (1220088).

Almost surely, 2^6405441 is an apocalyptic number.

It is an amenable number.

6405441 is a deficient number, since it is larger than the sum of its proper divisors (3355263).

6405441 is a wasteful number, since it uses less digits than its factorization.

6405441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305031.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 6405441 is about 2530.8972717201. The cubic root of 6405441 is about 185.7161527848.

The spelling of 6405441 in words is "six million, four hundred five thousand, four hundred forty-one".