1828189 has 12 divisors (see below), whose sum is σ = 2082780. Its totient is φ = 1601600.

The previous prime is 1828153. The next prime is 1828193. The reversal of 1828189 is 9818281.

It can be written as a sum of positive squares in 2 ways, for example, as 736164 + 1092025 = 858^2 + 1045^2 .

It is not a de Polignac number, because 1828189 - 2¹¹ = 1826141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3249 + ... + 3769.

It is an arithmetic number, because the mean of its divisors is an integer number (173565).

2^1828189 is an apocalyptic number.

It is an amenable number.

1828189 is a deficient number, since it is larger than the sum of its proper divisors (254591).

1828189 is a wasteful number, since it uses less digits than its factorization.

1828189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 561 counting only the distinct ones).

The product of its digits is 9216, while the sum is 37.

The square root of 1828189 is about 1352.1053953002. The cubic root of 1828189 is about 122.2757580283.

The spelling of 1828189 in words is "one million, eight hundred twenty-eight thousand, one hundred eighty-nine".