6405066 has 48 divisors (see below), whose sum is σ = 14511744. Its totient is φ = 2040192.

The previous prime is 6405059. The next prime is 6405067. The reversal of 6405066 is 6605046.

It is not an unprimeable number, because it can be changed into a prime (6405067) 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 23 ways as a sum of consecutive naturals, for example, 56626 + ... + 56738.

It is an arithmetic number, because the mean of its divisors is an integer number (302328).

Almost surely, 2^6405066 is an apocalyptic number.

6405066 is an abundant number, since it is smaller than the sum of its proper divisors (8106678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6405066 is a wasteful number, since it uses less digits than its factorization.

6405066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 6405066 is about 2530.8231862380. The cubic root of 6405066 is about 185.7125285266.

The spelling of 6405066 in words is "six million, four hundred five thousand, sixty-six".