6642056 has 8 divisors (see below), whose sum is σ = 12453870. Its totient is φ = 3321024.

The previous prime is 6642007. The next prime is 6642059. The reversal of 6642056 is 6502466.

It can be written as a sum of positive squares in only one way, i.e., 6421156 + 220900 = 2534^2 + 470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (6642059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415121 + ... + 415136.

Almost surely, 2^6642056 is an apocalyptic number.

It is an amenable number.

6642056 is a deficient number, since it is larger than the sum of its proper divisors (5811814).

6642056 is a wasteful number, since it uses less digits than its factorization.

6642056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830263 (or 830259 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 6642056 is about 2577.2186558381. The cubic root of 6642056 is about 187.9753249643.

The spelling of 6642056 in words is "six million, six hundred forty-two thousand, fifty-six".