6394224 has 20 divisors (see below), whose sum is σ = 16518536. Its totient is φ = 2131392.

The previous prime is 6394217. The next prime is 6394231. The reversal of 6394224 is 4224936.

It is an interprime number because it is at equal distance from previous prime (6394217) and next prime (6394231).

It is a super-2 number, since 2×6394224² = 81772201124352, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6² + 3¹³ + 9⁷ + 4⁴ + 2¹³ + 2¹³ + 4⁴ .

It is a junction number, because it is equal to n+sod(n) for n = 6394191 and 6394200.

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, 66559 + ... + 66654.

Almost surely, 2^6394224 is an apocalyptic number.

It is an amenable number.

6394224 is an abundant number, since it is smaller than the sum of its proper divisors (10124312).

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

6394224 is a wasteful number, since it uses less digits than its factorization.

6394224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133224 (or 133218 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 6394224 is about 2528.6802882136. The cubic root of 6394224 is about 185.6076827478.

The spelling of 6394224 in words is "six million, three hundred ninety-four thousand, two hundred twenty-four".