84424158 has 144 divisors (see below), whose sum is σ = 236527200. Its totient is φ = 21555072.

The previous prime is 84424157. The next prime is 84424169. The reversal of 84424158 is 85142448.

84424158 is a `hidden beast` number, since 84 + 424 + 158 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84424157) 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 71 ways as a sum of consecutive naturals, for example, 424143 + ... + 424341.

It is an arithmetic number, because the mean of its divisors is an integer number (1642550).

Almost surely, 2^84424158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84424158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118263600).

84424158 is an abundant number, since it is smaller than the sum of its proper divisors (152103042).

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

84424158 is a wasteful number, since it uses less digits than its factorization.

84424158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 261 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 84424158 is about 9188.2619684029. The cubic root of 84424158 is about 438.6878227813.

The spelling of 84424158 in words is "eighty-four million, four hundred twenty-four thousand, one hundred fifty-eight".