18316200 has 192 divisors, whose sum is σ = 66960000. Its totient is φ = 4139520.

The previous prime is 18316187. The next prime is 18316201. The reversal of 18316200 is 261381.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (18316201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205756 + ... + 205844.

It is an arithmetic number, because the mean of its divisors is an integer number (348750).

Almost surely, 2^18316200 is an apocalyptic number.

18316200 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 18316200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33480000).

18316200 is an abundant number, since it is smaller than the sum of its proper divisors (48643800).

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

18316200 is a wasteful number, since it uses less digits than its factorization.

18316200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 18316200 is about 4279.7429829372. The cubic root of 18316200 is about 263.5998299103.

Adding to 18316200 its reverse (261381), we get a palindrome (18577581).

The spelling of 18316200 in words is "eighteen million, three hundred sixteen thousand, two hundred".