42844512 has 96 divisors (see below), whose sum is σ = 117355392. Its totient is φ = 13676544.

The previous prime is 42844499. The next prime is 42844519. The reversal of 42844512 is 21544824.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 42844512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42844519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400363 + ... + 400469.

It is an arithmetic number, because the mean of its divisors is an integer number (1222452).

Almost surely, 2^42844512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42844512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58677696).

42844512 is an abundant number, since it is smaller than the sum of its proper divisors (74510880).

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

42844512 is a wasteful number, since it uses less digits than its factorization.

42844512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 252 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 42844512 is about 6545.5719383412. The cubic root of 42844512 is about 349.9170197839.

The spelling of 42844512 in words is "forty-two million, eight hundred forty-four thousand, five hundred twelve".