6641042 has 4 divisors (see below), whose sum is σ = 9961566. Its totient is φ = 3320520.

The previous prime is 6641039. The next prime is 6641077. The reversal of 6641042 is 2401466.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6497401 + 143641 = 2549^2 + 379^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6640999 and 6641017.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1660259 + ... + 1660262.

Almost surely, 2^6641042 is an apocalyptic number.

6641042 is a deficient number, since it is larger than the sum of its proper divisors (3320524).

6641042 is a wasteful number, since it uses less digits than its factorization.

6641042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320523.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 6641042 is about 2577.0219246254. The cubic root of 6641042 is about 187.9657588160.

The spelling of 6641042 in words is "six million, six hundred forty-one thousand, forty-two".