9228640 has 24 divisors (see below), whose sum is σ = 21803040. Its totient is φ = 3691392.

The previous prime is 9228631. The next prime is 9228689. The reversal of 9228640 is 468229.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28680 + ... + 28999.

It is an arithmetic number, because the mean of its divisors is an integer number (908460).

Almost surely, 2^9228640 is an apocalyptic number.

It is an amenable number.

9228640 is an abundant number, since it is smaller than the sum of its proper divisors (12574400).

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

9228640 is a wasteful number, since it uses less digits than its factorization.

9228640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57694 (or 57686 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 9228640 is about 3037.8676732208. The cubic root of 9228640 is about 209.7551189391.

The spelling of 9228640 in words is "nine million, two hundred twenty-eight thousand, six hundred forty".