6444345 has 16 divisors (see below), whose sum is σ = 10481472. Its totient is φ = 3380160.

The previous prime is 6444337. The next prime is 6444353. The reversal of 6444345 is 5434446.

It is an interprime number because it is at equal distance from previous prime (6444337) and next prime (6444353).

It is not a de Polignac number, because 6444345 - 2³ = 6444337 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 2607 + ... + 4436.

It is an arithmetic number, because the mean of its divisors is an integer number (655092).

Almost surely, 2^6444345 is an apocalyptic number.

It is an amenable number.

6444345 is a deficient number, since it is larger than the sum of its proper divisors (4037127).

6444345 is a wasteful number, since it uses less digits than its factorization.

6444345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112.

The product of its digits is 23040, while the sum is 30.

The square root of 6444345 is about 2538.5714486695. The cubic root of 6444345 is about 186.0913818513.

The spelling of 6444345 in words is "six million, four hundred forty-four thousand, three hundred forty-five".