6442976 has 24 divisors (see below), whose sum is σ = 13353480. Its totient is φ = 3051648.

The previous prime is 6442939. The next prime is 6442979. The reversal of 6442976 is 6792446.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6442979) 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 3 ways as a sum of consecutive naturals, for example, 4691 + ... + 5906.

It is an arithmetic number, because the mean of its divisors is an integer number (556395).

Almost surely, 2^6442976 is an apocalyptic number.

It is an amenable number.

6442976 is an abundant number, since it is smaller than the sum of its proper divisors (6910504).

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

6442976 is a wasteful number, since it uses less digits than its factorization.

6442976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10626 (or 10618 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 6442976 is about 2538.3017945075. The cubic root of 6442976 is about 186.0782035198.

The spelling of 6442976 in words is "six million, four hundred forty-two thousand, nine hundred seventy-six".