18046000 has 80 divisors (see below), whose sum is σ = 49907520. Its totient is φ = 6182400.

The previous prime is 18045997. The next prime is 18046001. The reversal of 18046000 is 64081.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18046001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13356 + ... + 14644.

It is an arithmetic number, because the mean of its divisors is an integer number (623844).

Almost surely, 2^18046000 is an apocalyptic number.

18046000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18046000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24953760).

18046000 is an abundant number, since it is smaller than the sum of its proper divisors (31861520).

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

18046000 is a wasteful number, since it uses less digits than its factorization.

18046000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319 (or 1303 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 18046000 is about 4248.0583800132. The cubic root of 18046000 is about 262.2971978569.

The spelling of 18046000 in words is "eighteen million, forty-six thousand".