42432542 has 8 divisors (see below), whose sum is σ = 64849896. Its totient is φ = 20815912.

The previous prime is 42432503. The next prime is 42432557. The reversal of 42432542 is 24523424.

It is a happy number.

42432542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 200048 + ... + 200259.

It is an arithmetic number, because the mean of its divisors is an integer number (8106237).

Almost surely, 2^42432542 is an apocalyptic number.

42432542 is a deficient number, since it is larger than the sum of its proper divisors (22417354).

42432542 is a wasteful number, since it uses less digits than its factorization.

42432542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400362.

The product of its digits is 7680, while the sum is 26.

The square root of 42432542 is about 6514.0265581282. The cubic root of 42432542 is about 348.7918672090.

Adding to 42432542 its reverse (24523424), we get a palindrome (66955966).

The spelling of 42432542 in words is "forty-two million, four hundred thirty-two thousand, five hundred forty-two".