1816441 has 8 divisors (see below), whose sum is σ = 2035584. Its totient is φ = 1606320.

The previous prime is 1816439. The next prime is 1816453. The reversal of 1816441 is 1446181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1816441 - 2¹ = 1816439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1816411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1825 + ... + 2638.

It is an arithmetic number, because the mean of its divisors is an integer number (254448).

2^1816441 is an apocalyptic number.

1816441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1816441 is a deficient number, since it is larger than the sum of its proper divisors (219143).

1816441 is a wasteful number, since it uses less digits than its factorization.

1816441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511.

The product of its digits is 768, while the sum is 25.

The square root of 1816441 is about 1347.7540576826. The cubic root of 1816441 is about 122.0132790348.

The spelling of 1816441 in words is "one million, eight hundred sixteen thousand, four hundred forty-one".