1818448 has 20 divisors (see below), whose sum is σ = 3565620. Its totient is φ = 898304.

The previous prime is 1818437. The next prime is 1818451. The reversal of 1818448 is 8448181.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 753424 + 1065024 = 868^2 + 1032^2 .

It is a nude number because it is divisible by every one of its digits.

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 3 ways as a sum of consecutive naturals, for example, 786 + ... + 2062.

It is an arithmetic number, because the mean of its divisors is an integer number (178281).

2^1818448 is an apocalyptic number.

It is an amenable number.

1818448 is a deficient number, since it is larger than the sum of its proper divisors (1747172).

1818448 is a wasteful number, since it uses less digits than its factorization.

1818448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374 (or 1368 counting only the distinct ones).

The product of its digits is 8192, while the sum is 34.

The square root of 1818448 is about 1348.4984241741. The cubic root of 1818448 is about 122.0582003059.

The spelling of 1818448 in words is "one million, eight hundred eighteen thousand, four hundred forty-eight".