18360000 has 280 divisors, whose sum is σ = 71414640. Its totient is φ = 4608000.

The previous prime is 18359981. The next prime is 18360007. The reversal of 18360000 is 6381.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (18360007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1079992 + ... + 1080008.

Almost surely, 2^18360000 is an apocalyptic number.

18360000 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 18360000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35707320).

18360000 is an abundant number, since it is smaller than the sum of its proper divisors (53054640).

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

18360000 is an equidigital number, since it uses as much as digits as its factorization.

18360000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 18360000 is about 4284.8570571257. The cubic root of 18360000 is about 263.8097803295.

Adding to 18360000 its reverse (6381), we get a palindrome (18366381).

The spelling of 18360000 in words is "eighteen million, three hundred sixty thousand".