1813802 has 4 divisors (see below), whose sum is σ = 2720706. Its totient is φ = 906900.

The previous prime is 1813793. The next prime is 1813813. The reversal of 1813802 is 2083181.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1002001 + 811801 = 1001^2 + 901^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453449 + ... + 453452.

2^1813802 is an apocalyptic number.

1813802 is a deficient number, since it is larger than the sum of its proper divisors (906904).

1813802 is an equidigital number, since it uses as much as digits as its factorization.

1813802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906903.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1813802 is about 1346.7746656364. The cubic root of 1813802 is about 121.9541617638.

Adding to 1813802 its reverse (2083181), we get a palindrome (3896983).

The spelling of 1813802 in words is "one million, eight hundred thirteen thousand, eight hundred two".