18394244382 has 32 divisors (see below), whose sum is σ = 38330164224. Its totient is φ = 5878166400.

The previous prime is 18394244377. The next prime is 18394244383. The reversal of 18394244382 is 28344249381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18394244383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442219 + ... + 482022.

It is an arithmetic number, because the mean of its divisors is an integer number (1197817632).

Almost surely, 2^18394244382 is an apocalyptic number.

18394244382 is an abundant number, since it is smaller than the sum of its proper divisors (19935919842).

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

18394244382 is a wasteful number, since it uses less digits than its factorization.

18394244382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924384.

The product of its digits is 1327104, while the sum is 48.

The spelling of 18394244382 in words is "eighteen billion, three hundred ninety-four million, two hundred forty-four thousand, three hundred eighty-two".