9189428 has 24 divisors (see below), whose sum is σ = 16511040. Its totient is φ = 4473920.

The previous prime is 9189421. The next prime is 9189457. The reversal of 9189428 is 8249819.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9189421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29393 + ... + 29703.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^9189428 is an apocalyptic number.

It is an amenable number.

9189428 is a deficient number, since it is larger than the sum of its proper divisors (7321612).

9189428 is a wasteful number, since it uses less digits than its factorization.

9189428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 485 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 9189428 is about 3031.4069340819. The cubic root of 9189428 is about 209.4576177407.

The spelling of 9189428 in words is "nine million, one hundred eighty-nine thousand, four hundred twenty-eight".