6642026 has 8 divisors (see below), whose sum is σ = 9974340. Its totient is φ = 3317248.

The previous prime is 6642007. The next prime is 6642059. The reversal of 6642026 is 6202466.

It can be written as a sum of positive squares in 2 ways, for example, as 5067001 + 1575025 = 2251^2 + 1255^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 6641986 and 6642004.

It is a congruent number.

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, 1640 + ... + 3996.

Almost surely, 2^6642026 is an apocalyptic number.

6642026 is a deficient number, since it is larger than the sum of its proper divisors (3332314).

6642026 is a wasteful number, since it uses less digits than its factorization.

6642026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 6642026 is about 2577.2128356036. The cubic root of 6642026 is about 187.9750419562.

The spelling of 6642026 in words is "six million, six hundred forty-two thousand, twenty-six".