42082843 has 4 divisors (see below), whose sum is σ = 45908568. Its totient is φ = 38257120.

The previous prime is 42082823. The next prime is 42082877. The reversal of 42082843 is 34828024.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42082843 - 2⁵ = 42082811 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42082823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1912846 + ... + 1912867.

It is an arithmetic number, because the mean of its divisors is an integer number (11477142).

Almost surely, 2^42082843 is an apocalyptic number.

42082843 is a deficient number, since it is larger than the sum of its proper divisors (3825725).

42082843 is a wasteful number, since it uses less digits than its factorization.

42082843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825724.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 42082843 is about 6487.1290260022. The cubic root of 42082843 is about 347.8310576239.

The spelling of 42082843 in words is "forty-two million, eighty-two thousand, eight hundred forty-three".