18168150 has 192 divisors, whose sum is σ = 60996096. Its totient is φ = 3484800.

The previous prime is 18168149. The next prime is 18168151. The reversal of 18168150 is 5186181.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18168149) and next prime (18168151).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18168151) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1397544 + ... + 1397556.

It is an arithmetic number, because the mean of its divisors is an integer number (317688).

Almost surely, 2^18168150 is an apocalyptic number.

18168150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18168150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30498048).

18168150 is an abundant number, since it is smaller than the sum of its proper divisors (42827946).

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

18168150 is a wasteful number, since it uses less digits than its factorization.

18168150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 18168150 is about 4262.4112893995. The cubic root of 18168150 is about 262.8876811277.

The spelling of 18168150 in words is "eighteen million, one hundred sixty-eight thousand, one hundred fifty".