42986018 has 16 divisors (see below), whose sum is σ = 68001120. Its totient is φ = 20323296.

The previous prime is 42986017. The next prime is 42986023. The reversal of 42986018 is 81068924.

42986018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (42986017) 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 7 ways as a sum of consecutive naturals, for example, 35621 + ... + 36807.

It is an arithmetic number, because the mean of its divisors is an integer number (4250070).

Almost surely, 2^42986018 is an apocalyptic number.

42986018 is a deficient number, since it is larger than the sum of its proper divisors (25015102).

42986018 is a wasteful number, since it uses less digits than its factorization.

42986018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 42986018 is about 6556.3723201173. The cubic root of 42986018 is about 350.3018294325.

The spelling of 42986018 in words is "forty-two million, nine hundred eighty-six thousand, eighteen".