18054900 has 108 divisors (see below), whose sum is σ = 58767072. Its totient is φ = 4808160.

The previous prime is 18054893. The next prime is 18054917. The reversal of 18054900 is 945081.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23929 + ... + 24671.

Almost surely, 2^18054900 is an apocalyptic number.

18054900 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 18054900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29383536).

18054900 is an abundant number, since it is smaller than the sum of its proper divisors (40712172).

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

18054900 is a wasteful number, since it uses less digits than its factorization.

18054900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 18054900 is about 4249.1057882806. The cubic root of 18054900 is about 262.3403110380.

Adding to 18054900 its reverse (945081), we get a palindrome (18999981).

The spelling of 18054900 in words is "eighteen million, fifty-four thousand, nine hundred".