7522320 has 80 divisors (see below), whose sum is σ = 25123392. Its totient is φ = 1850880.

The previous prime is 7522289. The next prime is 7522321. The reversal of 7522320 is 232257.

7522320 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7522321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1915 + ... + 4325.

Almost surely, 2^7522320 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 7522320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12561696).

7522320 is an abundant number, since it is smaller than the sum of its proper divisors (17601072).

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

7522320 is a wasteful number, since it uses less digits than its factorization.

7522320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440 (or 2434 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 7522320 is about 2742.6848160151. The cubic root of 7522320 is about 195.9373671873.

Adding to 7522320 its reverse (232257), we get a palindrome (7754577).

The spelling of 7522320 in words is "seven million, five hundred twenty-two thousand, three hundred twenty".