18282018 has 16 divisors (see below), whose sum is σ = 36648576. Its totient is φ = 6079920.

The previous prime is 18282007. The next prime is 18282029. The reversal of 18282018 is 81028281.

It is an interprime number because it is at equal distance from previous prime (18282007) and next prime (18282029).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513 + ... + 6068.

It is an arithmetic number, because the mean of its divisors is an integer number (2290536).

Almost surely, 2^18282018 is an apocalyptic number.

18282018 is an abundant number, since it is smaller than the sum of its proper divisors (18366558).

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

18282018 is a wasteful number, since it uses less digits than its factorization.

18282018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049.

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 18282018 is about 4275.7476539197. The cubic root of 18282018 is about 263.4357496552.

The spelling of 18282018 in words is "eighteen million, two hundred eighty-two thousand, eighteen".