84040188 has 24 divisors (see below), whose sum is σ = 199310160. Its totient is φ = 27553920.

The previous prime is 84040171. The next prime is 84040207. The reversal of 84040188 is 88104048.

It is a congruent number.

It is an unprimeable number.

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, 56673 + ... + 58136.

It is an arithmetic number, because the mean of its divisors is an integer number (8304590).

Almost surely, 2^84040188 is an apocalyptic number.

It is an amenable number.

84040188 is an abundant number, since it is smaller than the sum of its proper divisors (115269972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84040188 is a wasteful number, since it uses less digits than its factorization.

84040188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114877 (or 114875 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 84040188 is about 9167.3435628867. The cubic root of 84040188 is about 438.0217457563.

The spelling of 84040188 in words is "eighty-four million, forty thousand, one hundred eighty-eight".