18238002 has 8 divisors (see below), whose sum is σ = 36476016. Its totient is φ = 6079332.

The previous prime is 18238001. The next prime is 18238007. The reversal of 18238002 is 20083281.

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

18238002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (18238001) 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, 1519828 + ... + 1519839.

It is an arithmetic number, because the mean of its divisors is an integer number (4559502).

Almost surely, 2^18238002 is an apocalyptic number.

18238002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18238002 is a wasteful number, since it uses less digits than its factorization.

18238002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039672.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 18238002 is about 4270.5973821001. The cubic root of 18238002 is about 263.2241627623.

The spelling of 18238002 in words is "eighteen million, two hundred thirty-eight thousand, two".