6669404 has 24 divisors (see below), whose sum is σ = 13399008. Its totient is φ = 2845440.

The previous prime is 6669401. The next prime is 6669409. The reversal of 6669404 is 4049666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669401) 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, 8384 + ... + 9144.

It is an arithmetic number, because the mean of its divisors is an integer number (558292).

Almost surely, 2^6669404 is an apocalyptic number.

It is an amenable number.

6669404 is an abundant number, since it is smaller than the sum of its proper divisors (6729604).

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

6669404 is a wasteful number, since it uses less digits than its factorization.

6669404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1083 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 6669404 is about 2582.5189253905. The cubic root of 6669404 is about 188.2329615443.

The spelling of 6669404 in words is "six million, six hundred sixty-nine thousand, four hundred four".