18484080 has 40 divisors (see below), whose sum is σ = 57301392. Its totient is φ = 4929024.

The previous prime is 18484073. The next prime is 18484099. The reversal of 18484080 is 8048481.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×18484080² = 683322426892800, which contains 22 as substring.

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, 38269 + ... + 38748.

Almost surely, 2^18484080 is an apocalyptic number.

18484080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18484080 is an abundant number, since it is smaller than the sum of its proper divisors (38817312).

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

18484080 is a wasteful number, since it uses less digits than its factorization.

18484080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77033 (or 77027 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 18484080 is about 4299.3115727986. The cubic root of 18484080 is about 264.4027370035.

The spelling of 18484080 in words is "eighteen million, four hundred eighty-four thousand, eighty".