18875484 has 24 divisors (see below), whose sum is σ = 48936720. Its totient is φ = 6291792.

The previous prime is 18875477. The next prime is 18875543. The reversal of 18875484 is 48457881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87279 + ... + 87494.

It is an arithmetic number, because the mean of its divisors is an integer number (2039030).

Almost surely, 2^18875484 is an apocalyptic number.

It is an amenable number.

18875484 is an abundant number, since it is smaller than the sum of its proper divisors (30061236).

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

18875484 is a wasteful number, since it uses less digits than its factorization.

18875484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174786 (or 174778 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 18875484 is about 4344.5925010293. The cubic root of 18875484 is about 266.2559768545.

The spelling of 18875484 in words is "eighteen million, eight hundred seventy-five thousand, four hundred eighty-four".