18942300 has 108 divisors (see below), whose sum is σ = 63980280. Its totient is φ = 4659840.

The previous prime is 18942293. The next prime is 18942311. The reversal of 18942300 is 324981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10891 + ... + 12509.

It is an arithmetic number, because the mean of its divisors is an integer number (592410).

Almost surely, 2^18942300 is an apocalyptic number.

18942300 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 18942300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31990140).

18942300 is an abundant number, since it is smaller than the sum of its proper divisors (45037980).

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

18942300 is a wasteful number, since it uses less digits than its factorization.

18942300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 18942300 is about 4352.2752670299. The cubic root of 18942300 is about 266.5697738262.

The spelling of 18942300 in words is "eighteen million, nine hundred forty-two thousand, three hundred".