232007440 has 80 divisors (see below), whose sum is σ = 643315968. Its totient is φ = 76082688.

The previous prime is 232007387. The next prime is 232007443. The reversal of 232007440 is 44700232.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (232007443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3874 + ... + 21886.

Almost surely, 2^232007440 is an apocalyptic number.

232007440 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 232007440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321657984).

232007440 is an abundant number, since it is smaller than the sum of its proper divisors (411308528).

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

232007440 is a wasteful number, since it uses less digits than its factorization.

232007440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18056 (or 18050 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 232007440 is about 15231.7904397349. The cubic root of 232007440 is about 614.4699334684.

Adding to 232007440 its reverse (44700232), we get a palindrome (276707672).

The spelling of 232007440 in words is "two hundred thirty-two million, seven thousand, four hundred forty".