42843838 has 8 divisors (see below), whose sum is σ = 65319480. Its totient is φ = 21070680.

The previous prime is 42843809. The next prime is 42843847. The reversal of 42843838 is 83834824.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42843838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175468 + ... + 175711.

It is an arithmetic number, because the mean of its divisors is an integer number (8164935).

Almost surely, 2^42843838 is an apocalyptic number.

42843838 is a deficient number, since it is larger than the sum of its proper divisors (22475642).

42843838 is a wasteful number, since it uses less digits than its factorization.

42843838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351242.

The product of its digits is 147456, while the sum is 40.

The square root of 42843838 is about 6545.5204529510. The cubic root of 42843838 is about 349.9151848907.

It can be divided in two parts, 42843 and 838, that added together give a square (43681 = 209²).

The spelling of 42843838 in words is "forty-two million, eight hundred forty-three thousand, eight hundred thirty-eight".