42985344 has 128 divisors (see below), whose sum is σ = 123770880. Its totient is φ = 13178880.

The previous prime is 42985339. The next prime is 42985351. The reversal of 42985344 is 44358924.

42985344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

Its product of digits (138240) is a multiple of the sum of its prime divisors (216).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273714 + ... + 273870.

It is an arithmetic number, because the mean of its divisors is an integer number (966960).

Almost surely, 2^42985344 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 42985344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61885440).

42985344 is an abundant number, since it is smaller than the sum of its proper divisors (80785536).

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

42985344 is a wasteful number, since it uses less digits than its factorization.

42985344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 216 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 42985344 is about 6556.3209195402. The cubic root of 42985344 is about 350.2999985684.

The spelling of 42985344 in words is "forty-two million, nine hundred eighty-five thousand, three hundred forty-four".