18934782 has 16 divisors (see below), whose sum is σ = 37932672. Its totient is φ = 6301080.

The previous prime is 18934781. The next prime is 18934793. The reversal of 18934782 is 28743981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18934781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1863 + ... + 6429.

It is an arithmetic number, because the mean of its divisors is an integer number (2370792).

Almost surely, 2^18934782 is an apocalyptic number.

18934782 is an abundant number, since it is smaller than the sum of its proper divisors (18997890).

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

18934782 is a wasteful number, since it uses less digits than its factorization.

18934782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263.

The product of its digits is 96768, while the sum is 42.

The square root of 18934782 is about 4351.4114951358. The cubic root of 18934782 is about 266.5345029114.

The spelling of 18934782 in words is "eighteen million, nine hundred thirty-four thousand, seven hundred eighty-two".