7222004 has 6 divisors (see below), whose sum is σ = 12638514.
Its totient is φ = 3611000.
The previous prime is 7222001. The next prime is 7222009. The reversal of 7222004 is 4002227.
It can be written as a sum of positive squares in only one way, i.e., 6864400 + 357604 = 2620^2 + 598^2
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7222001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902747 + ... + 902754.
It is an arithmetic number, because the mean of its divisors is an integer number (2106419).
Almost surely, 27222004 is an apocalyptic number.
It is an amenable number.
7222004 is a deficient number, since it is larger than the sum of its proper divisors (5416510).
7222004 is a wasteful number, since it uses less digits than its factorization.
7222004 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1805505 (or 1805503 counting only the distinct ones).
The product of its (nonzero) digits is 224, while the sum is 17.
The square root of 7222004 is about 2687.3786484230.
The cubic root of 7222004 is about 193.2943863943.
The spelling of 7222004 in words is "seven million, two hundred twenty-two thousand, four".