6643042 has 8 divisors (see below), whose sum is σ = 11388096. Its totient is φ = 2847012.

The previous prime is 6643033. The next prime is 6643051. The reversal of 6643042 is 2403466.

It is an interprime number because it is at equal distance from previous prime (6643033) and next prime (6643051).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 6642998 and 6643016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237238 + ... + 237265.

It is an arithmetic number, because the mean of its divisors is an integer number (1423512).

Almost surely, 2^6643042 is an apocalyptic number.

6643042 is a deficient number, since it is larger than the sum of its proper divisors (4745054).

6643042 is a wasteful number, since it uses less digits than its factorization.

6643042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474512.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 6643042 is about 2577.4099402307. The cubic root of 6643042 is about 187.9846260251.

The spelling of 6643042 in words is "six million, six hundred forty-three thousand, forty-two".