18264856 has 16 divisors (see below), whose sum is σ = 34345440. Its totient is φ = 9106080.

The previous prime is 18264853. The next prime is 18264881. The reversal of 18264856 is 65846281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18264853) 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 in 3 ways as a sum of consecutive naturals, for example, 175 + ... + 6046.

It is an arithmetic number, because the mean of its divisors is an integer number (2146590).

Almost surely, 2^18264856 is an apocalyptic number.

It is an amenable number.

18264856 is a deficient number, since it is larger than the sum of its proper divisors (16080584).

18264856 is a wasteful number, since it uses less digits than its factorization.

18264856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6594 (or 6590 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 18264856 is about 4273.7402822352. The cubic root of 18264856 is about 263.3532915849.

The spelling of 18264856 in words is "eighteen million, two hundred sixty-four thousand, eight hundred fifty-six".