18285876 has 72 divisors (see below), whose sum is σ = 53289600. Its totient is φ = 5178816.

The previous prime is 18285857. The next prime is 18285889. The reversal of 18285876 is 67858281.

It is a super-2 number, since 2×18285876² = 668746522174752, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37305 + ... + 37791.

Almost surely, 2^18285876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18285876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26644800).

18285876 is an abundant number, since it is smaller than the sum of its proper divisors (35003724).

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

18285876 is a wasteful number, since it uses less digits than its factorization.

18285876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 648 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 18285876 is about 4276.1987792898. The cubic root of 18285876 is about 263.4542790400.

The spelling of 18285876 in words is "eighteen million, two hundred eighty-five thousand, eight hundred seventy-six".