18103330 has 32 divisors (see below), whose sum is σ = 37604736. Its totient is φ = 6146304.

The previous prime is 18103313. The next prime is 18103331. The reversal of 18103330 is 3330181.

It is a junction number, because it is equal to n+sod(n) for n = 18103298 and 18103307.

It is not an unprimeable number, because it can be changed into a prime (18103331) 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, 6282 + ... + 8698.

It is an arithmetic number, because the mean of its divisors is an integer number (1175148).

Almost surely, 2^18103330 is an apocalyptic number.

18103330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18103330 is an abundant number, since it is smaller than the sum of its proper divisors (19501406).

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

18103330 is a wasteful number, since it uses less digits than its factorization.

18103330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 18103330 is about 4254.8008178997. The cubic root of 18103330 is about 262.5746665902.

The spelling of 18103330 in words is "eighteen million, one hundred three thousand, three hundred thirty".