18372102 has 64 divisors (see below), whose sum is σ = 43711488. Its totient is φ = 5040000.

The previous prime is 18372097. The next prime is 18372103. The reversal of 18372102 is 20127381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18372103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181852 + ... + 181952.

It is an arithmetic number, because the mean of its divisors is an integer number (682992).

Almost surely, 2^18372102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18372102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21855744).

18372102 is an abundant number, since it is smaller than the sum of its proper divisors (25339386).

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

18372102 is a wasteful number, since it uses less digits than its factorization.

18372102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 18372102 is about 4286.2690069570. The cubic root of 18372102 is about 263.8677310329.

Adding to 18372102 its reverse (20127381), we get a palindrome (38499483).

The spelling of 18372102 in words is "eighteen million, three hundred seventy-two thousand, one hundred two".