18779312 has 20 divisors (see below), whose sum is σ = 37273656. Its totient is φ = 9160320.

The previous prime is 18779309. The next prime is 18779329. The reversal of 18779312 is 21397781.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13658 + ... + 14969.

Almost surely, 2^18779312 is an apocalyptic number.

It is an amenable number.

18779312 is a deficient number, since it is larger than the sum of its proper divisors (18494344).

18779312 is a wasteful number, since it uses less digits than its factorization.

18779312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28676 (or 28670 counting only the distinct ones).

The product of its digits is 21168, while the sum is 38.

The square root of 18779312 is about 4333.5103553586. The cubic root of 18779312 is about 265.8030086531.

It can be divided in two parts, 18779 and 312, that added together give a palindrome (19091).

The spelling of 18779312 in words is "eighteen million, seven hundred seventy-nine thousand, three hundred twelve".