232432440 has 64 divisors (see below), whose sum is σ = 698664960. Its totient is φ = 61860480.

The previous prime is 232432439. The next prime is 232432441. The reversal of 232432440 is 44234232.

It is an interprime number because it is at equal distance from previous prime (232432439) and next prime (232432441).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 232432440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232432441) 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, 71245 + ... + 74435.

It is an arithmetic number, because the mean of its divisors is an integer number (10916640).

Almost surely, 2^232432440 is an apocalyptic number.

232432440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232432440 is an abundant number, since it is smaller than the sum of its proper divisors (466232520).

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

232432440 is a wasteful number, since it uses less digits than its factorization.

232432440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812 (or 3808 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 232432440 is about 15245.7351413436. The cubic root of 232432440 is about 614.8449076826.

Adding to 232432440 its reverse (44234232), we get a palindrome (276666672).

The spelling of 232432440 in words is "two hundred thirty-two million, four hundred thirty-two thousand, four hundred forty".