6402224 has 20 divisors (see below), whose sum is σ = 12521520. Its totient is φ = 3170880.

The previous prime is 6402203. The next prime is 6402247. The reversal of 6402224 is 4222046.

It is a junction number, because it is equal to n+sod(n) for n = 6402196 and 6402205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92 + ... + 3579.

It is an arithmetic number, because the mean of its divisors is an integer number (626076).

Almost surely, 2^6402224 is an apocalyptic number.

It is an amenable number.

6402224 is a deficient number, since it is larger than the sum of its proper divisors (6119296).

6402224 is a wasteful number, since it uses less digits than its factorization.

6402224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788 (or 3782 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 6402224 is about 2530.2616465496. The cubic root of 6402224 is about 185.6850568821.

It can be divided in two parts, 64022 and 24, that added together give a palindrome (64046).

The spelling of 6402224 in words is "six million, four hundred two thousand, two hundred twenty-four".