18103042 has 8 divisors (see below), whose sum is σ = 27327996. Its totient is φ = 8993712.

The previous prime is 18103003. The next prime is 18103049. The reversal of 18103042 is 24030181.

It can be written as a sum of positive squares in 2 ways, for example, as 18071001 + 32041 = 4251^2 + 179^2 .

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

It is not an unprimeable number, because it can be changed into a prime (18103049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28513 + ... + 29140.

Almost surely, 2^18103042 is an apocalyptic number.

18103042 is a deficient number, since it is larger than the sum of its proper divisors (9224954).

18103042 is a wasteful number, since it uses less digits than its factorization.

18103042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57812.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 18103042 is about 4254.7669736426. The cubic root of 18103042 is about 262.5732741778.

The spelling of 18103042 in words is "eighteen million, one hundred three thousand, forty-two".