18723364 has 24 divisors (see below), whose sum is σ = 35957376. Its totient is φ = 8460000.

The previous prime is 18723337. The next prime is 18723371. The reversal of 18723364 is 46332781.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 6789 + ... + 9139.

It is an arithmetic number, because the mean of its divisors is an integer number (1498224).

Almost surely, 2^18723364 is an apocalyptic number.

It is an amenable number.

18723364 is a deficient number, since it is larger than the sum of its proper divisors (17234012).

18723364 is a wasteful number, since it uses less digits than its factorization.

18723364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547 (or 2545 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 18723364 is about 4327.0502654811. The cubic root of 18723364 is about 265.5387827958.

The spelling of 18723364 in words is "eighteen million, seven hundred twenty-three thousand, three hundred sixty-four".