6722226 has 48 divisors (see below), whose sum is σ = 17192448. Its totient is φ = 1857600.

The previous prime is 6722207. The next prime is 6722239. The reversal of 6722226 is 6222276.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 6722226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3046 + ... + 4766.

It is an arithmetic number, because the mean of its divisors is an integer number (358176).

Almost surely, 2^6722226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6722226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8596224).

6722226 is an abundant number, since it is smaller than the sum of its proper divisors (10470222).

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

6722226 is a wasteful number, since it uses less digits than its factorization.

6722226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767 (or 1764 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 6722226 is about 2592.7255928848. The cubic root of 6722226 is about 188.7285933941.

The spelling of 6722226 in words is "six million, seven hundred twenty-two thousand, two hundred twenty-six".