6489442 has 4 divisors (see below), whose sum is σ = 9734166. Its totient is φ = 3244720.

The previous prime is 6489433. The next prime is 6489449. The reversal of 6489442 is 2449846.

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., 6456681 + 32761 = 2541^2 + 181^2 .

It is a super-2 number, since 2×6489442² = 84225714942728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6489449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1622359 + ... + 1622362.

Almost surely, 2^6489442 is an apocalyptic number.

6489442 is a deficient number, since it is larger than the sum of its proper divisors (3244724).

6489442 is a wasteful number, since it uses less digits than its factorization.

6489442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3244723.

The product of its digits is 55296, while the sum is 37.

The square root of 6489442 is about 2547.4383211375. The cubic root of 6489442 is about 186.5244573052.

The spelling of 6489442 in words is "six million, four hundred eighty-nine thousand, four hundred forty-two".