18245700 has 216 divisors, whose sum is σ = 66349920. Its totient is φ = 4147200.

The previous prime is 18245687. The next prime is 18245707. The reversal of 18245700 is 754281.

It is not an unprimeable number, because it can be changed into a prime (18245707) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 188052 + ... + 188148.

Almost surely, 2^18245700 is an apocalyptic number.

18245700 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 18245700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33174960).

18245700 is an abundant number, since it is smaller than the sum of its proper divisors (48104220).

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

18245700 is a wasteful number, since it uses less digits than its factorization.

18245700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 18245700 is about 4271.4985660772. The cubic root of 18245700 is about 263.2611919387.

Adding to 18245700 its reverse (754281), we get a palindrome (18999981).

The spelling of 18245700 in words is "eighteen million, two hundred forty-five thousand, seven hundred".