42844736 has 28 divisors (see below), whose sum is σ = 92750640. Its totient is φ = 19474560.

The previous prime is 42844721. The next prime is 42844757. The reversal of 42844736 is 63744824.

It is a self number, because there is not a number n which added to its sum of digits gives 42844736.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29726 + ... + 31133.

Almost surely, 2^42844736 is an apocalyptic number.

It is an amenable number.

42844736 is an abundant number, since it is smaller than the sum of its proper divisors (49905904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42844736 is a wasteful number, since it uses less digits than its factorization.

42844736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60882 (or 60872 counting only the distinct ones).

The product of its digits is 129024, while the sum is 38.

The square root of 42844736 is about 6545.5890491231. The cubic root of 42844736 is about 349.9176295957.

The spelling of 42844736 in words is "forty-two million, eight hundred forty-four thousand, seven hundred thirty-six".