18984080382 has 32 divisors (see below), whose sum is σ = 38300589600. Its totient is φ = 6272847360.

The previous prime is 18984080333. The next prime is 18984080389. The reversal of 18984080382 is 28308048981.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18984080389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311994 + ... + 367842.

It is an arithmetic number, because the mean of its divisors is an integer number (1196893425).

Almost surely, 2^18984080382 is an apocalyptic number.

18984080382 is an abundant number, since it is smaller than the sum of its proper divisors (19316509218).

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

18984080382 is a wasteful number, since it uses less digits than its factorization.

18984080382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56348.

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 18984080382 in words is "eighteen billion, nine hundred eighty-four million, eighty thousand, three hundred eighty-two".