18582044 has 12 divisors (see below), whose sum is σ = 35020104. Its totient is φ = 8576304.

The previous prime is 18582041. The next prime is 18582073. The reversal of 18582044 is 44028581.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18582044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18582041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178622 + ... + 178725.

It is an arithmetic number, because the mean of its divisors is an integer number (2918342).

Almost surely, 2^18582044 is an apocalyptic number.

It is an amenable number.

18582044 is a deficient number, since it is larger than the sum of its proper divisors (16438060).

18582044 is a wasteful number, since it uses less digits than its factorization.

18582044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357364 (or 357362 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 18582044 is about 4310.6895040121. The cubic root of 18582044 is about 264.8690179803.

The spelling of 18582044 in words is "eighteen million, five hundred eighty-two thousand, forty-four".