18270150 has 36 divisors (see below), whose sum is σ = 45440172. Its totient is φ = 4858080.

The previous prime is 18270139. The next prime is 18270151. The reversal of 18270150 is 5107281.

It is a self number, because there is not a number n which added to its sum of digits gives 18270150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18270151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 52176 + ... + 52524.

It is an arithmetic number, because the mean of its divisors is an integer number (1262227).

Almost surely, 2^18270150 is an apocalyptic number.

18270150 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 18270150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22720086).

18270150 is an abundant number, since it is smaller than the sum of its proper divisors (27170022).

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

18270150 is an equidigital number, since it uses as much as digits as its factorization.

18270150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 18270150 is about 4274.3596011566. The cubic root of 18270150 is about 263.3787331149.

Multiplying 18270150 by its sum of digits (24), we get a square (438483600 = 20940²).

The spelling of 18270150 in words is "eighteen million, two hundred seventy thousand, one hundred fifty".