42432518 has 8 divisors (see below), whose sum is σ = 64076400. Its totient is φ = 21073720.

The previous prime is 42432503. The next prime is 42432557. The reversal of 42432518 is 81523424.

It is a happy number.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70898 + ... + 71493.

It is an arithmetic number, because the mean of its divisors is an integer number (8009550).

Almost surely, 2^42432518 is an apocalyptic number.

42432518 is a deficient number, since it is larger than the sum of its proper divisors (21643882).

42432518 is a wasteful number, since it uses less digits than its factorization.

42432518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142542.

The product of its digits is 7680, while the sum is 29.

The square root of 42432518 is about 6514.0247159494. The cubic root of 42432518 is about 348.7918014496.

The spelling of 42432518 in words is "forty-two million, four hundred thirty-two thousand, five hundred eighteen".