1803426 has 16 divisors (see below), whose sum is σ = 3695328. Its totient is φ = 586400.

The previous prime is 1803421. The next prime is 1803449. The reversal of 1803426 is 6243081.

It is a happy number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1803396 and 1803405.

It is not an unprimeable number, because it can be changed into a prime (1803421) 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, 3420 + ... + 3911.

It is an arithmetic number, because the mean of its divisors is an integer number (230958).

2^1803426 is an apocalyptic number.

1803426 is an abundant number, since it is smaller than the sum of its proper divisors (1891902).

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

1803426 is a wasteful number, since it uses less digits than its factorization.

1803426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1803426 is about 1342.9169743510. The cubic root of 1803426 is about 121.7211673844.

The spelling of 1803426 in words is "one million, eight hundred three thousand, four hundred twenty-six".