18396854 has 24 divisors (see below), whose sum is σ = 32368248. Its totient is φ = 7818720.

The previous prime is 18396821. The next prime is 18396863. The reversal of 18396854 is 45869381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12122 + ... + 13554.

It is an arithmetic number, because the mean of its divisors is an integer number (1348677).

Almost surely, 2^18396854 is an apocalyptic number.

18396854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18396854 is a deficient number, since it is larger than the sum of its proper divisors (13971394).

18396854 is a wasteful number, since it uses less digits than its factorization.

18396854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 1573 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 18396854 is about 4289.1553947135. The cubic root of 18396854 is about 263.9861773448.

The spelling of 18396854 in words is "eighteen million, three hundred ninety-six thousand, eight hundred fifty-four".