1830556 has 48 divisors (see below), whose sum is σ = 4064256. Its totient is φ = 702144.

The previous prime is 1830539. The next prime is 1830557. The reversal of 1830556 is 6550381.

1830556 is nontrivially palindromic in base 3.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1830557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17055 + ... + 17161.

It is an arithmetic number, because the mean of its divisors is an integer number (84672).

2^1830556 is an apocalyptic number.

1830556 is the 856-th heptagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1830556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2032128).

1830556 is an abundant number, since it is smaller than the sum of its proper divisors (2233700).

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

1830556 is a wasteful number, since it uses less digits than its factorization.

1830556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1830556 is about 1352.9804137533. The cubic root of 1830556 is about 122.3285063856.

The spelling of 1830556 in words is "one million, eight hundred thirty thousand, five hundred fifty-six".