18143364 has 12 divisors (see below), whose sum is σ = 42334544. Its totient is φ = 6047784.

The previous prime is 18143353. The next prime is 18143371. The reversal of 18143364 is 46334181.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755962 + ... + 755985.

Almost surely, 2^18143364 is an apocalyptic number.

It is an amenable number.

18143364 is an abundant number, since it is smaller than the sum of its proper divisors (24191180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18143364 is a wasteful number, since it uses less digits than its factorization.

18143364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511954 (or 1511952 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 18143364 is about 4259.5027878850. The cubic root of 18143364 is about 262.7680780596.

The spelling of 18143364 in words is "eighteen million, one hundred forty-three thousand, three hundred sixty-four".