18452000 has 96 divisors (see below), whose sum is σ = 51891840. Its totient is φ = 6316800.

The previous prime is 18451999. The next prime is 18452029. The reversal of 18452000 is 25481.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27671 + ... + 28329.

It is an arithmetic number, because the mean of its divisors is an integer number (540540).

Almost surely, 2^18452000 is an apocalyptic number.

18452000 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 18452000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25945920).

18452000 is an abundant number, since it is smaller than the sum of its proper divisors (33439840).

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

18452000 is an equidigital number, since it uses as much as digits as its factorization.

18452000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 18452000 is about 4295.5791227726. The cubic root of 18452000 is about 264.2496872523.

Adding to 18452000 its reverse (25481), we get a palindrome (18477481).

The spelling of 18452000 in words is "eighteen million, four hundred fifty-two thousand".