9229440 has 256 divisors, whose sum is σ = 35251200. Its totient is φ = 2027520.

The previous prime is 9229439. The next prime is 9229457. The reversal of 9229440 is 449229.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 9229398 and 9229407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401269 + ... + 401291.

It is an arithmetic number, because the mean of its divisors is an integer number (137700).

Almost surely, 2^9229440 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 9229440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17625600).

9229440 is an abundant number, since it is smaller than the sum of its proper divisors (26021760).

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

9229440 is a wasteful number, since it uses less digits than its factorization.

9229440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 9229440 is about 3037.9993416721. Note that the first 3 decimals coincide. The cubic root of 9229440 is about 209.7611797544.

It can be divided in two parts, 9229 and 440, that added together give a palindrome (9669).

The spelling of 9229440 in words is "nine million, two hundred twenty-nine thousand, four hundred forty".