42043447 has 8 divisors (see below), whose sum is σ = 44351360. Its totient is φ = 39745080.

The previous prime is 42043439. The next prime is 42043451. The reversal of 42043447 is 74434024.

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 42043447 - 2³ = 42043439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42043847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7822 + ... + 12052.

It is an arithmetic number, because the mean of its divisors is an integer number (5543920).

Almost surely, 2^42043447 is an apocalyptic number.

42043447 is a deficient number, since it is larger than the sum of its proper divisors (2307913).

42043447 is a wasteful number, since it uses less digits than its factorization.

42043447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773.

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

The square root of 42043447 is about 6484.0918408055. The cubic root of 42043447 is about 347.7224826507.

The spelling of 42043447 in words is "forty-two million, forty-three thousand, four hundred forty-seven".