18934364 has 6 divisors (see below), whose sum is σ = 33135144. Its totient is φ = 9467180.

The previous prime is 18934337. The next prime is 18934367. The reversal of 18934364 is 46343981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18934367) by changing a digit.

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 as a sum of consecutive naturals, namely, 2366792 + ... + 2366799.

It is an arithmetic number, because the mean of its divisors is an integer number (5522524).

Almost surely, 2^18934364 is an apocalyptic number.

It is an amenable number.

18934364 is a deficient number, since it is larger than the sum of its proper divisors (14200780).

18934364 is a wasteful number, since it uses less digits than its factorization.

18934364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733595 (or 4733593 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 18934364 is about 4351.3634644787. The cubic root of 18934364 is about 266.5325415783.

The spelling of 18934364 in words is "eighteen million, nine hundred thirty-four thousand, three hundred sixty-four".