9409220 has 12 divisors (see below), whose sum is σ = 19759404. Its totient is φ = 3763680.

The previous prime is 9409219. The next prime is 9409229. The reversal of 9409220 is 229049.

It can be written as a sum of positive squares in 2 ways, for example, as 4674244 + 4734976 = 2162^2 + 2176^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9409220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9409229) 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 3 ways as a sum of consecutive naturals, for example, 235211 + ... + 235250.

It is an arithmetic number, because the mean of its divisors is an integer number (1646617).

Almost surely, 2^9409220 is an apocalyptic number.

It is an amenable number.

9409220 is an abundant number, since it is smaller than the sum of its proper divisors (10350184).

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

9409220 is a wasteful number, since it uses less digits than its factorization.

9409220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470470 (or 470468 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 9409220 is about 3067.4451910344. The cubic root of 9409220 is about 211.1144082793.

The spelling of 9409220 in words is "nine million, four hundred nine thousand, two hundred twenty".