232244640 has 72 divisors (see below), whose sum is σ = 792539748. Its totient is φ = 61931520.

The previous prime is 232244627. The next prime is 232244641. The reversal of 232244640 is 46442232.

It can be written as a sum of positive squares in 2 ways, for example, as 227527056 + 4717584 = 15084^2 + 2172^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (232244641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79201 + ... + 82080.

Almost surely, 2^232244640 is an apocalyptic number.

232244640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232244640 is an abundant number, since it is smaller than the sum of its proper divisors (560295108).

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

232244640 is a wasteful number, since it uses less digits than its factorization.

232244640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161302 (or 161291 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 232244640 is about 15239.5747972179. The cubic root of 232244640 is about 614.6792696072.

Adding to 232244640 its reverse (46442232), we get a palindrome (278686872).

The spelling of 232244640 in words is "two hundred thirty-two million, two hundred forty-four thousand, six hundred forty".