9138304 has 96 divisors (see below), whose sum is σ = 22325760. Its totient is φ = 3709440.

The previous prime is 9138293. The next prime is 9138323. The reversal of 9138304 is 4038319.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194409 + ... + 194455.

It is an arithmetic number, because the mean of its divisors is an integer number (232560).

Almost surely, 2^9138304 is an apocalyptic number.

9138304 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9138304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11162880).

9138304 is an abundant number, since it is smaller than the sum of its proper divisors (13187456).

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

9138304 is a wasteful number, since it uses less digits than its factorization.

9138304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 9138304 is about 3022.9627850835. The cubic root of 9138304 is about 209.0684665378.

The spelling of 9138304 in words is "nine million, one hundred thirty-eight thousand, three hundred four".