7222844 has 18 divisors (see below), whose sum is σ = 13000680. Its totient is φ = 3511152.

The previous prime is 7222823. The next prime is 7222849. The reversal of 7222844 is 4482227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222849) 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 in 5 ways as a sum of consecutive naturals, for example, 4817 + ... + 6135.

It is an arithmetic number, because the mean of its divisors is an integer number (722260).

Almost surely, 2^7222844 is an apocalyptic number.

7222844 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

7222844 is a deficient number, since it is larger than the sum of its proper divisors (5777836).

7222844 is a wasteful number, since it uses less digits than its factorization.

7222844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1358 counting only the distinct ones).

The product of its digits is 7168, while the sum is 29.

The square root of 7222844 is about 2687.5349300056. The cubic root of 7222844 is about 193.3018802049.

The spelling of 7222844 in words is "seven million, two hundred twenty-two thousand, eight hundred forty-four".