18025300 has 72 divisors (see below), whose sum is σ = 42184800. Its totient is φ = 6664320.

The previous prime is 18025297. The next prime is 18025333. The reversal of 18025300 is 352081.

It is a happy number.

It is a super-2 number, since 2×18025300² = 649822880180000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100611 + ... + 100789.

It is an arithmetic number, because the mean of its divisors is an integer number (585900).

Almost surely, 2^18025300 is an apocalyptic number.

18025300 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 18025300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21092400).

18025300 is an abundant number, since it is smaller than the sum of its proper divisors (24159500).

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

18025300 is a wasteful number, since it uses less digits than its factorization.

18025300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 18025300 is about 4245.6212737360. The cubic root of 18025300 is about 262.1968685255.

Adding to 18025300 its reverse (352081), we get a palindrome (18377381).

The spelling of 18025300 in words is "eighteen million, twenty-five thousand, three hundred".