6404226 has 8 divisors (see below), whose sum is σ = 12808464. Its totient is φ = 2134740.

The previous prime is 6404191. The next prime is 6404227. The reversal of 6404226 is 6224046.

It is a sphenic number, since it is the product of 3 distinct primes.

6404226 is an admirable number.

It is a super-2 number, since 2×6404226² = 82028221318152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6404196 and 6404205.

It is not an unprimeable number, because it can be changed into a prime (6404227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533680 + ... + 533691.

It is an arithmetic number, because the mean of its divisors is an integer number (1601058).

Almost surely, 2^6404226 is an apocalyptic number.

6404226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6404226 is a wasteful number, since it uses less digits than its factorization.

6404226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067376.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 6404226 is about 2530.6572268879. The cubic root of 6404226 is about 185.7044096749.

The spelling of 6404226 in words is "six million, four hundred four thousand, two hundred twenty-six".