7223620 has 48 divisors (see below), whose sum is σ = 15998976. Its totient is φ = 2736000.

The previous prime is 7223609. The next prime is 7223627. The reversal of 7223620 is 263227.

It is a junction number, because it is equal to n+sod(n) for n = 7223591 and 7223600.

It is not an unprimeable number, because it can be changed into a prime (7223627) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 37725 + ... + 37915.

It is an arithmetic number, because the mean of its divisors is an integer number (333312).

Almost surely, 2^7223620 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 7223620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7999488).

7223620 is an abundant number, since it is smaller than the sum of its proper divisors (8775356).

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

7223620 is a wasteful number, since it uses less digits than its factorization.

7223620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 7223620 is about 2687.6792963447. The cubic root of 7223620 is about 193.3088025422.

Adding to 7223620 its reverse (263227), we get a palindrome (7486847).

The spelling of 7223620 in words is "seven million, two hundred twenty-three thousand, six hundred twenty".