18782148 has 48 divisors (see below), whose sum is σ = 54641664. Its totient is φ = 4878240.

The previous prime is 18782123. The next prime is 18782149. The reversal of 18782148 is 84128781.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18782149) 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 15 ways as a sum of consecutive naturals, for example, 9240 + ... + 11087.

It is an arithmetic number, because the mean of its divisors is an integer number (1138368).

Almost surely, 2^18782148 is an apocalyptic number.

It is an amenable number.

18782148 is an abundant number, since it is smaller than the sum of its proper divisors (35859516).

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

18782148 is a wasteful number, since it uses less digits than its factorization.

18782148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20352 (or 20350 counting only the distinct ones).

The product of its digits is 28672, while the sum is 39.

The square root of 18782148 is about 4333.8375604076. The cubic root of 18782148 is about 265.8163882592.

The spelling of 18782148 in words is "eighteen million, seven hundred eighty-two thousand, one hundred forty-eight".