232661320 has 128 divisors (see below), whose sum is σ = 578534400. Its totient is φ = 83865600.

The previous prime is 232661311. The next prime is 232661321. The reversal of 232661320 is 23166232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (232661321) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2945041 + ... + 2945119.

It is an arithmetic number, because the mean of its divisors is an integer number (4519800).

Almost surely, 2^232661320 is an apocalyptic number.

232661320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232661320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289267200).

232661320 is an abundant number, since it is smaller than the sum of its proper divisors (345873080).

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

232661320 is a wasteful number, since it uses less digits than its factorization.

232661320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 232661320 is about 15253.2396558895. The cubic root of 232661320 is about 615.0466573984.

The spelling of 232661320 in words is "two hundred thirty-two million, six hundred sixty-one thousand, three hundred twenty".