42887858 has 8 divisors (see below), whose sum is σ = 69280428. Its totient is φ = 19794384.

The previous prime is 42887851. The next prime is 42887869. The reversal of 42887858 is 85878824.

42887858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42863209 + 24649 = 6547^2 + 157^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (42887851) 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 3 ways as a sum of consecutive naturals, for example, 824741 + ... + 824792.

Almost surely, 2^42887858 is an apocalyptic number.

42887858 is a deficient number, since it is larger than the sum of its proper divisors (26392570).

42887858 is a wasteful number, since it uses less digits than its factorization.

42887858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649548.

The product of its digits is 1146880, while the sum is 50.

The square root of 42887858 is about 6548.8821946955. The cubic root of 42887858 is about 350.0349842581.

The spelling of 42887858 in words is "forty-two million, eight hundred eighty-seven thousand, eight hundred fifty-eight".