84044138 has 8 divisors (see below), whose sum is σ = 126360000. Its totient is φ = 41924140.

The previous prime is 84044099. The next prime is 84044159. The reversal of 84044138 is 83144048.

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

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, 47888 + ... + 49611.

It is an arithmetic number, because the mean of its divisors is an integer number (15795000).

Almost surely, 2^84044138 is an apocalyptic number.

84044138 is a deficient number, since it is larger than the sum of its proper divisors (42315862).

84044138 is a wasteful number, since it uses less digits than its factorization.

84044138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97932.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 84044138 is about 9167.5589989920. The cubic root of 84044138 is about 438.0286081826.

The spelling of 84044138 in words is "eighty-four million, forty-four thousand, one hundred thirty-eight".