18300100 has 72 divisors (see below), whose sum is σ = 48899648. Its totient is φ = 5788800.

The previous prime is 18300083. The next prime is 18300101. The reversal of 18300100 is 100381.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (18300101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8095 + ... + 10105.

Almost surely, 2^18300100 is an apocalyptic number.

18300100 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 18300100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24449824).

18300100 is an abundant number, since it is smaller than the sum of its proper divisors (30599548).

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

18300100 is a wasteful number, since it uses less digits than its factorization.

18300100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 18300100 is about 4277.8616153401. The cubic root of 18300100 is about 263.5225722304.

Adding to 18300100 its reverse (100381), we get a palindrome (18400481).

The spelling of 18300100 in words is "eighteen million, three hundred thousand, one hundred".