232130440 has 32 divisors (see below), whose sum is σ = 528912000. Its totient is φ = 91675584.

The previous prime is 232130389. The next prime is 232130441. The reversal of 232130440 is 44031232.

It is not an unprimeable number, because it can be changed into a prime (232130441) 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 7 ways as a sum of consecutive naturals, for example, 33570 + ... + 39889.

It is an arithmetic number, because the mean of its divisors is an integer number (16528500).

Almost surely, 2^232130440 is an apocalyptic number.

232130440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232130440 is an abundant number, since it is smaller than the sum of its proper divisors (296781560).

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

232130440 is a wasteful number, since it uses less digits than its factorization.

232130440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73549 (or 73545 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 232130440 is about 15235.8275128068. The cubic root of 232130440 is about 614.5785024715.

Adding to 232130440 its reverse (44031232), we get a palindrome (276161672).

It can be divided in two parts, 2321 and 30440, that added together give a square (32761 = 181²).

The spelling of 232130440 in words is "two hundred thirty-two million, one hundred thirty thousand, four hundred forty".