18284103 has 16 divisors (see below), whose sum is σ = 28266240. Its totient is φ = 11659032.

The previous prime is 18284093. The next prime is 18284107. The reversal of 18284103 is 30148281.

It is not a de Polignac number, because 18284103 - 2⁶ = 18284039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18284107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14101 + ... + 15342.

It is an arithmetic number, because the mean of its divisors is an integer number (1766640).

Almost surely, 2^18284103 is an apocalyptic number.

18284103 is a deficient number, since it is larger than the sum of its proper divisors (9982137).

18284103 is a wasteful number, since it uses less digits than its factorization.

18284103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29475 (or 29469 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 18284103 is about 4275.9914639765. The cubic root of 18284103 is about 263.4457639155.

The spelling of 18284103 in words is "eighteen million, two hundred eighty-four thousand, one hundred three".