42981576 has 128 divisors (see below), whose sum is σ = 126956160. Its totient is φ = 11980800.

The previous prime is 42981563. The next prime is 42981577. The reversal of 42981576 is 67518924.

42981576 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42981577) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 273690 + ... + 273846.

It is an arithmetic number, because the mean of its divisors is an integer number (991845).

Almost surely, 2^42981576 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 42981576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63478080).

42981576 is an abundant number, since it is smaller than the sum of its proper divisors (83974584).

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

42981576 is a wasteful number, since it uses less digits than its factorization.

42981576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 251 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 42981576 is about 6556.0335569611. The cubic root of 42981576 is about 350.2897627621.

The spelling of 42981576 in words is "forty-two million, nine hundred eighty-one thousand, five hundred seventy-six".