231448 has 16 divisors (see below), whose sum is σ = 496080. Its totient is φ = 99168.

The previous prime is 231443. The next prime is 231461. The reversal of 231448 is 844132.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231443) by changing a digit.

231448 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2011 + ... + 2122.

It is an arithmetic number, because the mean of its divisors is an integer number (31005).

2²³¹⁴⁴⁸ is an apocalyptic number.

231448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231448 is an abundant number, since it is smaller than the sum of its proper divisors (264632).

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

231448 is a wasteful number, since it uses less digits than its factorization.

231448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4146 (or 4142 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 231448 is about 481.0904280902. The cubic root of 231448 is about 61.3975645106.

The spelling of 231448 in words is "two hundred thirty-one thousand, four hundred forty-eight".