9381312 has 112 divisors (see below), whose sum is σ = 28346400. Its totient is φ = 3041280.

The previous prime is 9381311. The next prime is 9381319. The reversal of 9381312 is 2131839.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9381311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105364 + ... + 105452.

Almost surely, 2^9381312 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 9381312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14173200).

9381312 is an abundant number, since it is smaller than the sum of its proper divisors (18965088).

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

9381312 is a wasteful number, since it uses less digits than its factorization.

9381312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 155 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 9381312 is about 3062.8927503261. The cubic root of 9381312 is about 210.9054779045.

The spelling of 9381312 in words is "nine million, three hundred eighty-one thousand, three hundred twelve".