1813996 has 12 divisors (see below), whose sum is σ = 3277120. Its totient is φ = 877680.

The previous prime is 1813993. The next prime is 1814003. The reversal of 1813996 is 6993181.

It is not an unprimeable number, because it can be changed into a prime (1813991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7191 + ... + 7438.

2^1813996 is an apocalyptic number.

It is an amenable number.

1813996 is a deficient number, since it is larger than the sum of its proper divisors (1463124).

1813996 is a wasteful number, since it uses less digits than its factorization.

1813996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14664 (or 14662 counting only the distinct ones).

The product of its digits is 11664, while the sum is 37.

The square root of 1813996 is about 1346.8466876375. The cubic root of 1813996 is about 121.9585095857.

It can be divided in two parts, 1813 and 996, that added together give a square (2809 = 53²).

The spelling of 1813996 in words is "one million, eight hundred thirteen thousand, nine hundred ninety-six".