42431806 has 8 divisors (see below), whose sum is σ = 63822240. Its totient is φ = 21157728.

The previous prime is 42431789. The next prime is 42431819. The reversal of 42431806 is 60813424.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28171 + ... + 29638.

It is an arithmetic number, because the mean of its divisors is an integer number (7977780).

Almost surely, 2^42431806 is an apocalyptic number.

42431806 is a deficient number, since it is larger than the sum of its proper divisors (21390434).

42431806 is a wasteful number, since it uses less digits than its factorization.

42431806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58178.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 42431806 is about 6513.9700644077. The cubic root of 42431806 is about 348.7898505783.

The spelling of 42431806 in words is "forty-two million, four hundred thirty-one thousand, eight hundred six".