It is a happy number.
It is a congruent number.
It is an unprimeable number.
Almost surely, 218502000 is an apocalyptic number.
18502000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18502000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25272936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18502000 is a wasteful number, since it uses less digits than its factorization.
18502000 is an evil number, because the sum of its binary digits is even.
The square root of 18502000 is about 4301.3951225155. The cubic root of 18502000 is about 264.4881540525.
Adding to 18502000 its reverse (20581), we get a palindrome (18522581).
The spelling of 18502000 in words is "eighteen million, five hundred two thousand".