18825180 has 72 divisors (see below), whose sum is σ = 57960336. Its totient is φ = 4561920.

The previous prime is 18825173. The next prime is 18825211. The reversal of 18825180 is 8152881.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5964 + ... + 8556.

Almost surely, 2^18825180 is an apocalyptic number.

18825180 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 18825180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28980168).

18825180 is an abundant number, since it is smaller than the sum of its proper divisors (39135156).

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

18825180 is a wasteful number, since it uses less digits than its factorization.

18825180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627 (or 2614 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 33.

The square root of 18825180 is about 4338.7993730985. The cubic root of 18825180 is about 266.0192384374.

The spelling of 18825180 in words is "eighteen million, eight hundred twenty-five thousand, one hundred eighty".