6405466 has 4 divisors (see below), whose sum is σ = 9608202. Its totient is φ = 3202732.

The previous prime is 6405463. The next prime is 6405473. The reversal of 6405466 is 6645046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6645046 = 2 ⋅3322523.

It can be written as a sum of positive squares in only one way, i.e., 6125625 + 279841 = 2475^2 + 529^2 .

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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601365 + ... + 1601368.

Almost surely, 2^6405466 is an apocalyptic number.

6405466 is a deficient number, since it is larger than the sum of its proper divisors (3202736).

6405466 is a wasteful number, since it uses less digits than its factorization.

6405466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202735.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 6405466 is about 2530.9022106751. The cubic root of 6405466 is about 185.7163943970.

The spelling of 6405466 in words is "six million, four hundred five thousand, four hundred sixty-six".