1813768 has 16 divisors (see below), whose sum is σ = 3710160. Its totient is φ = 824400.

The previous prime is 1813751. The next prime is 1813789. The reversal of 1813768 is 8673181.

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, 10218 + ... + 10393.

It is an arithmetic number, because the mean of its divisors is an integer number (231885).

2^1813768 is an apocalyptic number.

It is an amenable number.

1813768 is an abundant number, since it is smaller than the sum of its proper divisors (1896392).

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

1813768 is a wasteful number, since it uses less digits than its factorization.

1813768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20628 (or 20624 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 1813768 is about 1346.7620428272. The cubic root of 1813768 is about 121.9533997425.

The spelling of 1813768 in words is "one million, eight hundred thirteen thousand, seven hundred sixty-eight".