42407843 has 8 divisors (see below), whose sum is σ = 45664560. Its totient is φ = 39235840.

The previous prime is 42407819. The next prime is 42407857. The reversal of 42407843 is 34870424.

42407843 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 a de Polignac number, because none of the positive numbers 2^k-42407843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42407543) 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, 20138 + ... + 22143.

It is an arithmetic number, because the mean of its divisors is an integer number (5708070).

Almost surely, 2^42407843 is an apocalyptic number.

42407843 is a deficient number, since it is larger than the sum of its proper divisors (3256717).

42407843 is a wasteful number, since it uses less digits than its factorization.

42407843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42357.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 42407843 is about 6512.1304501676. The cubic root of 42407843 is about 348.7241795180.

The spelling of 42407843 in words is "forty-two million, four hundred seven thousand, eight hundred forty-three".