216004042 has 8 divisors (see below), whose sum is σ = 324216000. Its totient is φ = 107932044.

The previous prime is 216003967. The next prime is 216004049. The reversal of 216004042 is 240400612.

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 (216004049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31042 + ... + 37357.

It is an arithmetic number, because the mean of its divisors is an integer number (40527000).

Almost surely, 2^216004042 is an apocalyptic number.

216004042 is a deficient number, since it is larger than the sum of its proper divisors (108211958).

216004042 is a wasteful number, since it uses less digits than its factorization.

216004042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69980.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 216004042 is about 14697.0759676883. The cubic root of 216004042 is about 600.0037425692.

Adding to 216004042 its reverse (240400612), we get a palindrome (456404654).

The spelling of 216004042 in words is "two hundred sixteen million, four thousand, forty-two".