43842134 has 16 divisors (see below), whose sum is σ = 75243168. Its totient is φ = 18768192.

The previous prime is 43842119. The next prime is 43842143. The reversal of 43842134 is 43124834.

It is a junction number, because it is equal to n+sod(n) for n = 43842097 and 43842106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21962 + ... + 23874.

It is an arithmetic number, because the mean of its divisors is an integer number (4702698).

Almost surely, 2^43842134 is an apocalyptic number.

43842134 is a deficient number, since it is larger than the sum of its proper divisors (31401034).

43842134 is a wasteful number, since it uses less digits than its factorization.

43842134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559.

The product of its digits is 9216, while the sum is 29.

The square root of 43842134 is about 6621.3392905061. The cubic root of 43842134 is about 352.6121139615.

Adding to 43842134 its reverse (43124834), we get a palindrome (86966968).

The spelling of 43842134 in words is "forty-three million, eight hundred forty-two thousand, one hundred thirty-four".