18282015 has 12 divisors (see below), whose sum is σ = 31688904. Its totient is φ = 9750384.

The previous prime is 18282007. The next prime is 18282029. The reversal of 18282015 is 51028281.

It is not a de Polignac number, because 18282015 - 2³ = 18282007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18282015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203089 + ... + 203178.

It is an arithmetic number, because the mean of its divisors is an integer number (2640742).

Almost surely, 2^18282015 is an apocalyptic number.

18282015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18282015 is a deficient number, since it is larger than the sum of its proper divisors (13406889).

18282015 is a wasteful number, since it uses less digits than its factorization.

18282015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406278 (or 406275 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 18282015 is about 4275.7473031039. The cubic root of 18282015 is about 263.4357352457.

The spelling of 18282015 in words is "eighteen million, two hundred eighty-two thousand, fifteen".