42881442 has 16 divisors (see below), whose sum is σ = 90276960. Its totient is φ = 13541472.

The previous prime is 42881413. The next prime is 42881467. The reversal of 42881442 is 24418824.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187963 + ... + 188190.

It is an arithmetic number, because the mean of its divisors is an integer number (5642310).

Almost surely, 2^42881442 is an apocalyptic number.

42881442 is an abundant number, since it is smaller than the sum of its proper divisors (47395518).

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

42881442 is a wasteful number, since it uses less digits than its factorization.

42881442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376177.

The product of its digits is 16384, while the sum is 33.

The square root of 42881442 is about 6548.3923217840. The cubic root of 42881442 is about 350.0175283738.

The spelling of 42881442 in words is "forty-two million, eight hundred eighty-one thousand, four hundred forty-two".