84145044 has 24 divisors (see below), whose sum is σ = 196620928. Its totient is φ = 28008000.

The previous prime is 84145027. The next prime is 84145049. The reversal of 84145044 is 44054148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84145049) 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 7 ways as a sum of consecutive naturals, for example, 4344 + ... + 13680.

Almost surely, 2^84145044 is an apocalyptic number.

It is an amenable number.

84145044 is an abundant number, since it is smaller than the sum of its proper divisors (112475884).

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

84145044 is a wasteful number, since it uses less digits than its factorization.

84145044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095 (or 10093 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 84145044 is about 9173.0607759897. The cubic root of 84145044 is about 438.2038416508.

The spelling of 84145044 in words is "eighty-four million, one hundred forty-five thousand, forty-four".