1812441 has 8 divisors (see below), whose sum is σ = 2462400. Its totient is φ = 1185392.

The previous prime is 1812439. The next prime is 1812443. The reversal of 1812441 is 1442181.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1812439) and next prime (1812443).

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 1812441 - 2¹ = 1812439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812443) 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, 5541 + ... + 5858.

It is an arithmetic number, because the mean of its divisors is an integer number (307800).

2^1812441 is an apocalyptic number.

It is an amenable number.

1812441 is a deficient number, since it is larger than the sum of its proper divisors (649959).

1812441 is a wasteful number, since it uses less digits than its factorization.

1812441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11455.

The product of its digits is 256, while the sum is 21.

The square root of 1812441 is about 1346.2692895554. The cubic root of 1812441 is about 121.9236510564.

The spelling of 1812441 in words is "one million, eight hundred twelve thousand, four hundred forty-one".