43438342 has 8 divisors (see below), whose sum is σ = 66672936. Its totient is φ = 21214032.

The previous prime is 43438331. The next prime is 43438357. The reversal of 43438342 is 24383434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252463 + ... + 252634.

It is an arithmetic number, because the mean of its divisors is an integer number (8334117).

Almost surely, 2^43438342 is an apocalyptic number.

43438342 is a deficient number, since it is larger than the sum of its proper divisors (23234594).

43438342 is a wasteful number, since it uses less digits than its factorization.

43438342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505142.

The product of its digits is 27648, while the sum is 31.

The square root of 43438342 is about 6590.7770406834. Note that the first 3 decimals coincide. The cubic root of 43438342 is about 351.5262382892.

The spelling of 43438342 in words is "forty-three million, four hundred thirty-eight thousand, three hundred forty-two".