18036285 has 16 divisors (see below), whose sum is σ = 28990656. Its totient is φ = 9575168.

The previous prime is 18036247. The next prime is 18036287. The reversal of 18036285 is 58263081.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18036285 - 2⁷ = 18036157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18036287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 757 + ... + 6053.

It is an arithmetic number, because the mean of its divisors is an integer number (1811916).

Almost surely, 2^18036285 is an apocalyptic number.

18036285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18036285 is a deficient number, since it is larger than the sum of its proper divisors (10954371).

18036285 is a wasteful number, since it uses less digits than its factorization.

18036285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 18036285 is about 4246.9147625070. The cubic root of 18036285 is about 262.2501204863.

The spelling of 18036285 in words is "eighteen million, thirty-six thousand, two hundred eighty-five".