1803412 has 24 divisors (see below), whose sum is σ = 3449600. Its totient is φ = 819936.

The previous prime is 1803383. The next prime is 1803419. The reversal of 1803412 is 2143081.

It is a self number, because there is not a number n which added to its sum of digits gives 1803412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1803419) 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, 3889 + ... + 4327.

2^1803412 is an apocalyptic number.

It is an amenable number.

1803412 is a deficient number, since it is larger than the sum of its proper divisors (1646188).

1803412 is a wasteful number, since it uses less digits than its factorization.

1803412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1803412 is about 1342.9117618072. The cubic root of 1803412 is about 121.7208524097.

Adding to 1803412 its reverse (2143081), we get a palindrome (3946493).

The spelling of 1803412 in words is "one million, eight hundred three thousand, four hundred twelve".