6398224 has 30 divisors (see below), whose sum is σ = 14422254. Its totient is φ = 2741760.

The previous prime is 6398207. The next prime is 6398237. The reversal of 6398224 is 4228936.

6398224 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 5143824 + 1254400 = 2268^2 + 1120^2 .

It is a d-powerful number, because it can be written as 6⁸ + 3 + 9 + 8⁶ + 2¹⁸ + 2²² + 4 .

It is a self number, because there is not a number n which added to its sum of digits gives 6398224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3297 + ... + 4864.

Almost surely, 2^6398224 is an apocalyptic number.

It is an amenable number.

6398224 is an abundant number, since it is smaller than the sum of its proper divisors (8024030).

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

6398224 is a wasteful number, since it uses less digits than its factorization.

6398224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8183 (or 8170 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 6398224 is about 2529.4710909595. The cubic root of 6398224 is about 185.6463778770.

The spelling of 6398224 in words is "six million, three hundred ninety-eight thousand, two hundred twenty-four".