9572220 has 144 divisors (see below), whose sum is σ = 33965568. Its totient is φ = 2136960.

The previous prime is 9572203. The next prime is 9572239. The reversal of 9572220 is 222759.

It is a happy number.

9572220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89407 + ... + 89513.

It is an arithmetic number, because the mean of its divisors is an integer number (235872).

Almost surely, 2^9572220 is an apocalyptic number.

9572220 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9572220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16982784).

9572220 is an abundant number, since it is smaller than the sum of its proper divisors (24393348).

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

9572220 is a wasteful number, since it uses less digits than its factorization.

9572220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 9572220 is about 3093.9004508872. The cubic root of 9572220 is about 212.3265112251.

Adding to 9572220 its reverse (222759), we get a palindrome (9794979).

The spelling of 9572220 in words is "nine million, five hundred seventy-two thousand, two hundred twenty".