181094028 has 24 divisors (see below), whose sum is σ = 424131120. Its totient is φ = 60139200.

The previous prime is 181094003. The next prime is 181094029. The reversal of 181094028 is 820490181.

It is a self number, because there is not a number n which added to its sum of digits gives 181094028.

It is not an unprimeable number, because it can be changed into a prime (181094029) 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, 24823 + ... + 31278.

It is an arithmetic number, because the mean of its divisors is an integer number (17672130).

Almost surely, 2^181094028 is an apocalyptic number.

It is an amenable number.

181094028 is an abundant number, since it is smaller than the sum of its proper divisors (243037092).

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

181094028 is a wasteful number, since it uses less digits than its factorization.

181094028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56377 (or 56375 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 181094028 is about 13457.1181164468. The cubic root of 181094028 is about 565.7632184341.

The spelling of 181094028 in words is "one hundred eighty-one million, ninety-four thousand, twenty-eight".