9138800 has 120 divisors (see below), whose sum is σ = 25093632. Its totient is φ = 3168000.

The previous prime is 9138757. The next prime is 9138803. The reversal of 9138800 is 88319.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9138803) 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 23 ways as a sum of consecutive naturals, for example, 136367 + ... + 136433.

Almost surely, 2^9138800 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 9138800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12546816).

9138800 is an abundant number, since it is smaller than the sum of its proper divisors (15954832).

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

9138800 is a wasteful number, since it uses less digits than its factorization.

9138800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 9138800 is about 3023.0448226912. The cubic root of 9138800 is about 209.0722490078.

The spelling of 9138800 in words is "nine million, one hundred thirty-eight thousand, eight hundred".