84842180 has 12 divisors (see below), whose sum is σ = 178168620. Its totient is φ = 33936864.

The previous prime is 84842171. The next prime is 84842183. The reversal of 84842180 is 8124848.

It can be written as a sum of positive squares in 2 ways, for example, as 23658496 + 61183684 = 4864^2 + 7822^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 84842180.

It is not an unprimeable number, because it can be changed into a prime (84842183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2121035 + ... + 2121074.

It is an arithmetic number, because the mean of its divisors is an integer number (14847385).

Almost surely, 2^84842180 is an apocalyptic number.

It is an amenable number.

84842180 is an abundant number, since it is smaller than the sum of its proper divisors (93326440).

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

84842180 is a wasteful number, since it uses less digits than its factorization.

84842180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242118 (or 4242116 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 84842180 is about 9210.9814895048. The cubic root of 84842180 is about 439.4106779753.

The spelling of 84842180 in words is "eighty-four million, eight hundred forty-two thousand, one hundred eighty".