42047306 has 8 divisors (see below), whose sum is σ = 72081120. Its totient is φ = 18020268.

The previous prime is 42047293. The next prime is 42047321. The reversal of 42047306 is 60374024.

It is a happy number.

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

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, 1501676 + ... + 1501703.

It is an arithmetic number, because the mean of its divisors is an integer number (9010140).

Almost surely, 2^42047306 is an apocalyptic number.

42047306 is a deficient number, since it is larger than the sum of its proper divisors (30033814).

42047306 is a wasteful number, since it uses less digits than its factorization.

42047306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003388.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 42047306 is about 6484.3894084177. The cubic root of 42047306 is about 347.7331210110.

The spelling of 42047306 in words is "forty-two million, forty-seven thousand, three hundred six".