6443444 has 12 divisors (see below), whose sum is σ = 12886944. Its totient is φ = 2761464.

The previous prime is 6443429. The next prime is 6443447. The reversal of 6443444 is 4443446.

6443444 is an admirable number.

It is a super-2 number, since 2×6443444² = 83035941162272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6443447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115034 + ... + 115089.

It is an arithmetic number, because the mean of its divisors is an integer number (1073912).

Almost surely, 2^6443444 is an apocalyptic number.

It is an amenable number.

6443444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6443444 is a wasteful number, since it uses less digits than its factorization.

6443444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230134 (or 230132 counting only the distinct ones).

The product of its digits is 18432, while the sum is 29.

The square root of 6443444 is about 2538.3939804530. The cubic root of 6443444 is about 186.0827088131.

The spelling of 6443444 in words is "six million, four hundred forty-three thousand, four hundred forty-four".