18345150 has 96 divisors (see below), whose sum is σ = 51425280. Its totient is φ = 4808160.

The previous prime is 18345137. The next prime is 18345157. The reversal of 18345150 is 5154381.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18345157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 144387 + ... + 144513.

It is an arithmetic number, because the mean of its divisors is an integer number (535680).

Almost surely, 2^18345150 is an apocalyptic number.

18345150 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 18345150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25712640).

18345150 is an abundant number, since it is smaller than the sum of its proper divisors (33080130).

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

18345150 is a wasteful number, since it uses less digits than its factorization.

18345150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 18345150 is about 4283.1238599882. The cubic root of 18345150 is about 263.7386359591.

The spelling of 18345150 in words is "eighteen million, three hundred forty-five thousand, one hundred fifty".