18493875 has 48 divisors (see below), whose sum is σ = 35335872. Its totient is φ = 9273600.

The previous prime is 18493823. The next prime is 18493877. The reversal of 18493875 is 57839481.

It is not a de Polignac number, because 18493875 - 2¹⁴ = 18477491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 18493875.

It is not an unprimeable number, because it can be changed into a prime (18493877) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18642 + ... + 19608.

It is an arithmetic number, because the mean of its divisors is an integer number (736164).

Almost surely, 2^18493875 is an apocalyptic number.

18493875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18493875 is a deficient number, since it is larger than the sum of its proper divisors (16841997).

18493875 is a wasteful number, since it uses less digits than its factorization.

18493875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 992 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 18493875 is about 4300.4505577904. The cubic root of 18493875 is about 264.4494324567.

The spelling of 18493875 in words is "eighteen million, four hundred ninety-three thousand, eight hundred seventy-five".