1812544 has 28 divisors (see below), whose sum is σ = 3641344. Its totient is φ = 895104.

The previous prime is 1812541. The next prime is 1812553. The reversal of 1812544 is 4452181.

1812544 is nontrivially palindromic in base 5.

1812544 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1812541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8017 + ... + 8239.

It is an arithmetic number, because the mean of its divisors is an integer number (130048).

2^1812544 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 1812544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1820672).

1812544 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1812544 is a wasteful number, since it uses less digits than its factorization.

1812544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 352 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 1812544 is about 1346.3075428742. The cubic root of 1812544 is about 121.9259606301.

The spelling of 1812544 in words is "one million, eight hundred twelve thousand, five hundred forty-four".