6403224 has 16 divisors (see below), whose sum is σ = 16008120. Its totient is φ = 2134400.

The previous prime is 6403219. The next prime is 6403273. The reversal of 6403224 is 4223046.

It is a self number, because there is not a number n which added to its sum of digits gives 6403224.

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, 133377 + ... + 133424.

Almost surely, 2^6403224 is an apocalyptic number.

It is an amenable number.

6403224 is an abundant number, since it is smaller than the sum of its proper divisors (9604896).

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

6403224 is a wasteful number, since it uses less digits than its factorization.

6403224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266810 (or 266806 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 6403224 is about 2530.4592468562. The cubic root of 6403224 is about 185.6947241160.

The spelling of 6403224 in words is "six million, four hundred three thousand, two hundred twenty-four".