18069500 has 48 divisors (see below), whose sum is σ = 40098240. Its totient is φ = 7112000.

The previous prime is 18069473. The next prime is 18069511. The reversal of 18069500 is 596081.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35246 + ... + 35754.

It is an arithmetic number, because the mean of its divisors is an integer number (835380).

Almost surely, 2^18069500 is an apocalyptic number.

18069500 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 18069500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20049120).

18069500 is an abundant number, since it is smaller than the sum of its proper divisors (22028740).

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

18069500 is a wasteful number, since it uses less digits than its factorization.

18069500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 18069500 is about 4250.8234496389. The cubic root of 18069500 is about 262.4110053571.

The spelling of 18069500 in words is "eighteen million, sixty-nine thousand, five hundred".