23271232 has 56 divisors (see below), whose sum is σ = 49734216. Its totient is φ = 10764288.

The previous prime is 23271229. The next prime is 23271247. The reversal of 23271232 is 23217232.

It can be written as a sum of positive squares in 4 ways, for example, as 13133376 + 10137856 = 3624^2 + 3184^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79278 + ... + 79570.

It is an arithmetic number, because the mean of its divisors is an integer number (888111).

Almost surely, 2^23271232 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 23271232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24867108).

23271232 is an abundant number, since it is smaller than the sum of its proper divisors (26462984).

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

23271232 is a wasteful number, since it uses less digits than its factorization.

23271232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 385 counting only the distinct ones).

The product of its digits is 1008, while the sum is 22.

The square root of 23271232 is about 4824.0265339237. The cubic root of 23271232 is about 285.5002274763.

Adding to 23271232 its reverse (23217232), we get a palindrome (46488464).

The spelling of 23271232 in words is "twenty-three million, two hundred seventy-one thousand, two hundred thirty-two".