1828188 has 36 divisors (see below), whose sum is σ = 4732728. Its totient is φ = 594720.

The previous prime is 1828153. The next prime is 1828193. The reversal of 1828188 is 8818281.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 958 + ... + 2138.

2^1828188 is an apocalyptic number.

1828188 is a gapful number since it is divisible by the number (18) 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 1828188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2366364).

1828188 is an abundant number, since it is smaller than the sum of its proper divisors (2904540).

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

1828188 is a wasteful number, since it uses less digits than its factorization.

1828188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1229 counting only the distinct ones).

The product of its digits is 8192, while the sum is 36.

The square root of 1828188 is about 1352.1050255065. The cubic root of 1828188 is about 122.2757357338.

It can be divided in two parts, 1828 and 188, that added together give a triangular number (2016 = T₆₃).

The spelling of 1828188 in words is "one million, eight hundred twenty-eight thousand, one hundred eighty-eight".