84022018 has 8 divisors (see below), whose sum is σ = 128169360. Its totient is φ = 41298900.

The previous prime is 84021991. The next prime is 84022021. The reversal of 84022018 is 81022048.

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

It is a junction number, because it is equal to n+sod(n) for n = 84021983 and 84022001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355908 + ... + 356143.

It is an arithmetic number, because the mean of its divisors is an integer number (16021170).

Almost surely, 2^84022018 is an apocalyptic number.

84022018 is a deficient number, since it is larger than the sum of its proper divisors (44147342).

84022018 is a wasteful number, since it uses less digits than its factorization.

84022018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712112.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 84022018 is about 9166.3524915857. The cubic root of 84022018 is about 437.9901758255.

The spelling of 84022018 in words is "eighty-four million, twenty-two thousand, eighteen".