18283018 has 8 divisors (see below), whose sum is σ = 29534148. Its totient is φ = 8438304.

The previous prime is 18283009. The next prime is 18283019. The reversal of 18283018 is 81038281.

It can be written as a sum of positive squares in 2 ways, for example, as 16024009 + 2259009 = 4003^2 + 1503^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18283019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351571 + ... + 351622.

Almost surely, 2^18283018 is an apocalyptic number.

18283018 is a deficient number, since it is larger than the sum of its proper divisors (11251130).

18283018 is a wasteful number, since it uses less digits than its factorization.

18283018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703208.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 18283018 is about 4275.8645909336. The cubic root of 18283018 is about 263.4405527528.

The spelling of 18283018 in words is "eighteen million, two hundred eighty-three thousand, eighteen".