43642032 has 40 divisors (see below), whose sum is σ = 128848896. Its totient is φ = 12469056.

The previous prime is 43642021. The next prime is 43642061. The reversal of 43642032 is 23024634.

It is a happy number.

43642032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 43641993 and 43642011.

It is an unprimeable number.

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, 64608 + ... + 65279.

Almost surely, 2^43642032 is an apocalyptic number.

43642032 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

43642032 is an abundant number, since it is smaller than the sum of its proper divisors (85206864).

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

43642032 is a wasteful number, since it uses less digits than its factorization.

43642032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129905 (or 129899 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 43642032 is about 6606.2116224051. The cubic root of 43642032 is about 352.0748377380.

Adding to 43642032 its reverse (23024634), we get a palindrome (66666666).

The spelling of 43642032 in words is "forty-three million, six hundred forty-two thousand, thirty-two".