18875000 has 56 divisors (see below), whose sum is σ = 44530680. Its totient is φ = 7500000.

The previous prime is 18874997. The next prime is 18875041. The reversal of 18875000 is 57881.

It is a happy number.

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 13 ways as a sum of consecutive naturals, for example, 124925 + ... + 125075.

Almost surely, 2^18875000 is an apocalyptic number.

18875000 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 18875000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22265340).

18875000 is an abundant number, since it is smaller than the sum of its proper divisors (25655680).

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

18875000 is an frugal number, since it uses more digits than its factorization.

18875000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 18875000 is about 4344.5367992457. The cubic root of 18875000 is about 266.2537010807.

The spelling of 18875000 in words is "eighteen million, eight hundred seventy-five thousand".