6221444 has 12 divisors (see below), whose sum is σ = 10967964. Its totient is φ = 3087744.

The previous prime is 6221429. The next prime is 6221459. The reversal of 6221444 is 4441226.

It is an interprime number because it is at equal distance from previous prime (6221429) and next prime (6221459).

It can be written as a sum of positive squares in 2 ways, for example, as 2656900 + 3564544 = 1630^2 + 1888^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5129 + ... + 6224.

It is an arithmetic number, because the mean of its divisors is an integer number (913997).

Almost surely, 2^6221444 is an apocalyptic number.

It is an amenable number.

6221444 is a deficient number, since it is larger than the sum of its proper divisors (4746520).

6221444 is a wasteful number, since it uses less digits than its factorization.

6221444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11494 (or 11492 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 6221444 is about 2494.2822614933. The cubic root of 6221444 is about 183.9206100482.

The spelling of 6221444 in words is "six million, two hundred twenty-one thousand, four hundred forty-four".