1801802 has 8 divisors (see below), whose sum is σ = 2719776. Its totient is φ = 895212.

The previous prime is 1801781. The next prime is 1801817. The reversal of 1801802 is 2081081.

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

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, 2438 + ... + 3089.

It is an arithmetic number, because the mean of its divisors is an integer number (339972).

2^1801802 is an apocalyptic number.

1801802 is a deficient number, since it is larger than the sum of its proper divisors (917974).

1801802 is a wasteful number, since it uses less digits than its factorization.

1801802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5692.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1801802 is about 1342.3121842552. The cubic root of 1801802 is about 121.6846194396.

Adding to 1801802 its reverse (2081081), we get a palindrome (3882883).

The spelling of 1801802 in words is "one million, eight hundred one thousand, eight hundred two".