42383843 has 2 divisors, whose sum is σ = 42383844. Its totient is φ = 42383842.

The previous prime is 42383821. The next prime is 42383849. The reversal of 42383843 is 34838324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42383843 - 2²⁰ = 41335267 is a prime.

It is not a weakly prime, because it can be changed into another prime (42383849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21191921 + 21191922.

It is an arithmetic number, because the mean of its divisors is an integer number (21191922).

Almost surely, 2^42383843 is an apocalyptic number.

42383843 is a deficient number, since it is larger than the sum of its proper divisors (1).

42383843 is an equidigital number, since it uses as much as digits as its factorization.

42383843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 35.

The square root of 42383843 is about 6510.2874744515. The cubic root of 42383843 is about 348.6583822578.

The spelling of 42383843 in words is "forty-two million, three hundred eighty-three thousand, eight hundred forty-three".