18782260 has 96 divisors (see below), whose sum is σ = 49674240. Its totient is φ = 5816448.

The previous prime is 18782251. The next prime is 18782261. The reversal of 18782260 is 6228781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18782261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61027 + ... + 61333.

It is an arithmetic number, because the mean of its divisors is an integer number (517440).

Almost surely, 2^18782260 is an apocalyptic number.

18782260 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 18782260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24837120).

18782260 is an abundant number, since it is smaller than the sum of its proper divisors (30891980).

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

18782260 is a wasteful number, since it uses less digits than its factorization.

18782260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 18782260 is about 4333.8504819617. The cubic root of 18782260 is about 265.8169166222.

The spelling of 18782260 in words is "eighteen million, seven hundred eighty-two thousand, two hundred sixty".