7222904 has 32 divisors (see below), whose sum is σ = 14700000. Its totient is φ = 3307392.

The previous prime is 7222903. The next prime is 7222931. The reversal of 7222904 is 4092227.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222903) 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 7 ways as a sum of consecutive naturals, for example, 20522 + ... + 20870.

It is an arithmetic number, because the mean of its divisors is an integer number (459375).

Almost surely, 2^7222904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7222904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7350000).

7222904 is an abundant number, since it is smaller than the sum of its proper divisors (7477096).

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

7222904 is a wasteful number, since it uses less digits than its factorization.

7222904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 7222904 is about 2687.5460926280. The cubic root of 7222904 is about 193.3024154549.

The spelling of 7222904 in words is "seven million, two hundred twenty-two thousand, nine hundred four".