18055042 has 8 divisors (see below), whose sum is σ = 27102096. Its totient is φ = 9021012.

The previous prime is 18055031. The next prime is 18055043. The reversal of 18055042 is 24055081.

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

It is a junction number, because it is equal to n+sod(n) for n = 18054998 and 18055016.

It is not an unprimeable number, because it can be changed into a prime (18055043) 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 3 ways as a sum of consecutive naturals, for example, 1753 + ... + 6259.

It is an arithmetic number, because the mean of its divisors is an integer number (3387762).

Almost surely, 2^18055042 is an apocalyptic number.

18055042 is a deficient number, since it is larger than the sum of its proper divisors (9047054).

18055042 is a wasteful number, since it uses less digits than its factorization.

18055042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6512.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 18055042 is about 4249.1224976458. The cubic root of 18055042 is about 262.3409987963.

The spelling of 18055042 in words is "eighteen million, fifty-five thousand, forty-two".