18000480 has 48 divisors (see below), whose sum is σ = 56703024. Its totient is φ = 4800000.

The previous prime is 18000473. The next prime is 18000527. The reversal of 18000480 is 8400081.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18271 + ... + 19230.

It is an arithmetic number, because the mean of its divisors is an integer number (1181313).

Almost surely, 2^18000480 is an apocalyptic number.

18000480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18000480 is an abundant number, since it is smaller than the sum of its proper divisors (38702544).

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

18000480 is a wasteful number, since it uses less digits than its factorization.

18000480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37519 (or 37511 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 18000480 is about 4242.6972552847. The cubic root of 18000480 is about 262.0764689481.

The spelling of 18000480 in words is "eighteen million, four hundred eighty", and thus it is an aban number.