1812802 has 8 divisors (see below), whose sum is σ = 2731212. Its totient is φ = 902400.

The previous prime is 1812793. The next prime is 1812817. The reversal of 1812802 is 2082181.

It can be written as a sum of positive squares in 2 ways, for example, as 1792921 + 19881 = 1339^2 + 141^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1399 + ... + 2362.

2^1812802 is an apocalyptic number.

1812802 is a deficient number, since it is larger than the sum of its proper divisors (918410).

1812802 is a wasteful number, since it uses less digits than its factorization.

1812802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1812802 is about 1346.4033570962. The cubic root of 1812802 is about 121.9317453918.

Adding to 1812802 its reverse (2082181), we get a palindrome (3894983).

The spelling of 1812802 in words is "one million, eight hundred twelve thousand, eight hundred two".