18486480 has 160 divisors (see below), whose sum is σ = 63638784. Its totient is φ = 4415488.

The previous prime is 18486473. The next prime is 18486491. The reversal of 18486480 is 8468481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93742 + ... + 93938.

Almost surely, 2^18486480 is an apocalyptic number.

18486480 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 18486480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31819392).

18486480 is an abundant number, since it is smaller than the sum of its proper divisors (45152304).

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

18486480 is a wasteful number, since it uses less digits than its factorization.

18486480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 18486480 is about 4299.5906781925. The cubic root of 18486480 is about 264.4141799877.

The spelling of 18486480 in words is "eighteen million, four hundred eighty-six thousand, four hundred eighty".