42047443 has 8 divisors (see below), whose sum is σ = 44578512. Its totient is φ = 39522816.

The previous prime is 42047441. The next prime is 42047449. The reversal of 42047443 is 34474024.

42047443 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 cyclic number.

It is not a de Polignac number, because 42047443 - 2¹ = 42047441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42047441) by changing a digit.

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, 21096 + ... + 23002.

It is an arithmetic number, because the mean of its divisors is an integer number (5572314).

Almost surely, 2^42047443 is an apocalyptic number.

42047443 is a deficient number, since it is larger than the sum of its proper divisors (2531069).

42047443 is a wasteful number, since it uses less digits than its factorization.

42047443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221.

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 42047443 is about 6484.3999722411. The cubic root of 42047443 is about 347.7334986760.

The spelling of 42047443 in words is "forty-two million, forty-seven thousand, four hundred forty-three".