9143238 has 48 divisors (see below), whose sum is σ = 20238336. Its totient is φ = 2751840.

The previous prime is 9143221. The next prime is 9143273. The reversal of 9143238 is 8323419.

It is a super-2 number, since 2×9143238² = 167197602249288, which contains 22 as substring.

Its product of digits (5184) is a multiple of the sum of its prime divisors (216).

It is a congruent number.

It is an unprimeable number.

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, 71931 + ... + 72057.

It is an arithmetic number, because the mean of its divisors is an integer number (421632).

Almost surely, 2^9143238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9143238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10119168).

9143238 is an abundant number, since it is smaller than the sum of its proper divisors (11095098).

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

9143238 is a wasteful number, since it uses less digits than its factorization.

9143238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 216 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 9143238 is about 3023.7787617483. The cubic root of 9143238 is about 209.1060868744.

The spelling of 9143238 in words is "nine million, one hundred forty-three thousand, two hundred thirty-eight".