7223238 has 36 divisors (see below), whose sum is σ = 17162964. Its totient is φ = 2177400.

The previous prime is 7223221. The next prime is 7223239. The reversal of 7223238 is 8323227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7223239) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 37723 + ... + 37913.

It is an arithmetic number, because the mean of its divisors is an integer number (476749).

Almost surely, 2^7223238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7223238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8581482).

7223238 is an abundant number, since it is smaller than the sum of its proper divisors (9939726).

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

7223238 is a wasteful number, since it uses less digits than its factorization.

7223238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 207 counting only the distinct ones).

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

The square root of 7223238 is about 2687.6082303788. The cubic root of 7223238 is about 193.3053949588.

The spelling of 7223238 in words is "seven million, two hundred twenty-three thousand, two hundred thirty-eight".