181838022 has 8 divisors (see below), whose sum is σ = 363676056. Its totient is φ = 60612672.

The previous prime is 181838003. The next prime is 181838089. The reversal of 181838022 is 220838181.

181838022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

181838022 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 15153163 + ... + 15153174.

It is an arithmetic number, because the mean of its divisors is an integer number (45459507).

Almost surely, 2^181838022 is an apocalyptic number.

181838022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

181838022 is a wasteful number, since it uses less digits than its factorization.

181838022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30306342.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 181838022 is about 13484.7329228279. The cubic root of 181838022 is about 566.5369404696.

The spelling of 181838022 in words is "one hundred eighty-one million, eight hundred thirty-eight thousand, twenty-two".