6669342 has 24 divisors (see below), whose sum is σ = 15211560. Its totient is φ = 2106000.

The previous prime is 6669337. The next prime is 6669349. The reversal of 6669342 is 2439666.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6² + 6³ + 6⁸ + 9⁵ + 3¹⁴ + 4⁷ + 2¹⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 6669297 and 6669306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669349) 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 11 ways as a sum of consecutive naturals, for example, 9409 + ... + 10092.

It is an arithmetic number, because the mean of its divisors is an integer number (633815).

Almost surely, 2^6669342 is an apocalyptic number.

6669342 is an abundant number, since it is smaller than the sum of its proper divisors (8542218).

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

6669342 is a wasteful number, since it uses less digits than its factorization.

6669342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19528 (or 19525 counting only the distinct ones).

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

The square root of 6669342 is about 2582.5069215783. The cubic root of 6669342 is about 188.2323782598.

The spelling of 6669342 in words is "six million, six hundred sixty-nine thousand, three hundred forty-two".