231648288 has 48 divisors (see below), whose sum is σ = 629052480. Its totient is φ = 74552576.

The previous prime is 231648271. The next prime is 231648301. The reversal of 231648288 is 882846132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38820 + ... + 44387.

It is an arithmetic number, because the mean of its divisors is an integer number (13105260).

Almost surely, 2^231648288 is an apocalyptic number.

It is an amenable number.

231648288 is an abundant number, since it is smaller than the sum of its proper divisors (397404192).

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

231648288 is a wasteful number, since it uses less digits than its factorization.

231648288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83249 (or 83241 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 231648288 is about 15219.9963206303. The cubic root of 231648288 is about 614.1526992739.

The spelling of 231648288 in words is "two hundred thirty-one million, six hundred forty-eight thousand, two hundred eighty-eight".