7532220 has 48 divisors (see below), whose sum is σ = 21547008. Its totient is φ = 1965120.

The previous prime is 7532209. The next prime is 7532221. The reversal of 7532220 is 222357.

7532220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7532221) 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, 1485 + ... + 4155.

It is an arithmetic number, because the mean of its divisors is an integer number (448896).

Almost surely, 2^7532220 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 7532220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10773504).

7532220 is an abundant number, since it is smaller than the sum of its proper divisors (14014788).

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

7532220 is a wasteful number, since it uses less digits than its factorization.

7532220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730 (or 2728 counting only the distinct ones).

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

The square root of 7532220 is about 2744.4890234796. The cubic root of 7532220 is about 196.0232861407.

Adding to 7532220 its reverse (222357), we get a palindrome (7754577).

The spelling of 7532220 in words is "seven million, five hundred thirty-two thousand, two hundred twenty".