9432 has 24 divisors (see below), whose sum is σ = 25740. Its totient is φ = 3120.

The previous prime is 9431. The next prime is 9433. The reversal of 9432 is 2349.

Added to its reverse (2349) it gives a triangular number (11781 = T₁₅₃).

It is an interprime number because it is at equal distance from previous prime (9431) and next prime (9433).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is an alternating number because its digits alternate between odd and even.

It is one of the 548 Lynch-Bell numbers.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7 + ... + 137.

2⁹⁴³² 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 9432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12870).

9432 is an abundant number, since it is smaller than the sum of its proper divisors (16308).

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

9432 is a wasteful number, since it uses less digits than its factorization.

9432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 136 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 9432 is about 97.1184843374. The cubic root of 9432 is about 21.1284642382.

Subtracting from 9432 its product of digits (216), we obtain a square (9216 = 96²).

Adding to 9432 its reverse (2349), we get a triangular number (11781 = T₁₅₃).

It can be divided in two parts, 9 and 432, that added together give a square (441 = 21²).

The spelling of 9432 in words is "nine thousand, four hundred thirty-two".