6444446 has 4 divisors (see below), whose sum is σ = 9666672. Its totient is φ = 3222222.

The previous prime is 6444443. The next prime is 6444481.

6444446 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611110 + ... + 1611113.

It is an arithmetic number, because the mean of its divisors is an integer number (2416668).

Almost surely, 2^6444446 is an apocalyptic number.

6444446 is a deficient number, since it is larger than the sum of its proper divisors (3222226).

6444446 is a wasteful number, since it uses less digits than its factorization.

6444446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222225.

The product of its digits is 36864, while the sum is 32.

The square root of 6444446 is about 2538.5913416696. The cubic root of 6444446 is about 186.0923540282.

The spelling of 6444446 in words is "six million, four hundred forty-four thousand, four hundred forty-six".