18080283 has 16 divisors (see below), whose sum is σ = 26078976. Its totient is φ = 11076000.

The previous prime is 18080273. The next prime is 18080327. The reversal of 18080283 is 38208081.

It is a de Polignac number, because none of the positive numbers 2^k-18080283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18080283.

It is not an unprimeable number, because it can be changed into a prime (18080203) 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, 8866 + ... + 10712.

It is an arithmetic number, because the mean of its divisors is an integer number (1629936).

Almost surely, 2^18080283 is an apocalyptic number.

18080283 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18080283 is a deficient number, since it is larger than the sum of its proper divisors (7998693).

18080283 is a wasteful number, since it uses less digits than its factorization.

18080283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 18080283 is about 4252.0916029644. The cubic root of 18080283 is about 262.4631930252.

The spelling of 18080283 in words is "eighteen million, eighty thousand, two hundred eighty-three".