6442418 has 8 divisors (see below), whose sum is σ = 9675180. Its totient is φ = 3217360.

The previous prime is 6442399. The next prime is 6442427. The reversal of 6442418 is 8142446.

It can be written as a sum of positive squares in 2 ways, for example, as 4897369 + 1545049 = 2213^2 + 1243^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 1148 + ... + 3768.

Almost surely, 2^6442418 is an apocalyptic number.

6442418 is a deficient number, since it is larger than the sum of its proper divisors (3232762).

6442418 is a wasteful number, since it uses less digits than its factorization.

6442418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852.

The product of its digits is 6144, while the sum is 29.

The square root of 6442418 is about 2538.1918761197. The cubic root of 6442418 is about 186.0728315387.

The spelling of 6442418 in words is "six million, four hundred forty-two thousand, four hundred eighteen".