42885228 has 12 divisors (see below), whose sum is σ = 100065560. Its totient is φ = 14295072.

The previous prime is 42885209. The next prime is 42885263. The reversal of 42885228 is 82258824.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×42885228² = 3678285561223968, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1786873 + ... + 1786896.

Almost surely, 2^42885228 is an apocalyptic number.

It is an amenable number.

42885228 is an abundant number, since it is smaller than the sum of its proper divisors (57180332).

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

42885228 is a wasteful number, since it uses less digits than its factorization.

42885228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573776 (or 3573774 counting only the distinct ones).

The product of its digits is 81920, while the sum is 39.

The square root of 42885228 is about 6548.6813939907. The cubic root of 42885228 is about 350.0278290797.

The spelling of 42885228 in words is "forty-two million, eight hundred eighty-five thousand, two hundred twenty-eight".