6669432 has 128 divisors (see below), whose sum is σ = 23155200. Its totient is φ = 1728000.

The previous prime is 6669413. The next prime is 6669451. The reversal of 6669432 is 2349666.

It is an interprime number because it is at equal distance from previous prime (6669413) and next prime (6669451).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 16432 + ... + 16832.

It is an arithmetic number, because the mean of its divisors is an integer number (180900).

Almost surely, 2^6669432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6669432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11577600).

6669432 is an abundant number, since it is smaller than the sum of its proper divisors (16485768).

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

6669432 is a wasteful number, since it uses less digits than its factorization.

6669432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 424 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 6669432 is about 2582.5243464486. The cubic root of 6669432 is about 188.2332249619.

The spelling of 6669432 in words is "six million, six hundred sixty-nine thousand, four hundred thirty-two".