18682380 has 96 divisors (see below), whose sum is σ = 60177600. Its totient is φ = 4806144.

The previous prime is 18682369. The next prime is 18682393. The reversal of 18682380 is 8328681.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15064 + ... + 16256.

It is an arithmetic number, because the mean of its divisors is an integer number (626850).

Almost surely, 2^18682380 is an apocalyptic number.

18682380 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 18682380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30088800).

18682380 is an abundant number, since it is smaller than the sum of its proper divisors (41495220).

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

18682380 is a wasteful number, since it uses less digits than its factorization.

18682380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 18682380 is about 4322.3118813894. The cubic root of 18682380 is about 265.3448932841.

The spelling of 18682380 in words is "eighteen million, six hundred eighty-two thousand, three hundred eighty".