9272220 has 48 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 2364736.

The previous prime is 9272213. The next prime is 9272231. The reversal of 9272220 is 222729.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1980 + ... + 4739.

It is an arithmetic number, because the mean of its divisors is an integer number (564480).

Almost surely, 2^9272220 is an apocalyptic number.

It is an amenable number.

9272220 is an abundant number, since it is smaller than the sum of its proper divisors (17822820).

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

9272220 is a wasteful number, since it uses less digits than its factorization.

9272220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6754 (or 6752 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 9272220 is about 3045.0320195361. The cubic root of 9272220 is about 210.0847730304.

Adding to 9272220 its reverse (222729), we get a palindrome (9494949).

The spelling of 9272220 in words is "nine million, two hundred seventy-two thousand, two hundred twenty".