3813800 has 24 divisors (see below), whose sum is σ = 8867550. Its totient is φ = 1525440.

The previous prime is 3813773. The next prime is 3813811. The reversal of 3813800 is 83183.

It can be written as a sum of positive squares in 3 ways, for example, as 3694084 + 119716 = 1922^2 + 346^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9335 + ... + 9734.

Almost surely, 2^3813800 is an apocalyptic number.

It is an amenable number.

3813800 is an abundant number, since it is smaller than the sum of its proper divisors (5053750).

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

3813800 is a wasteful number, since it uses less digits than its factorization.

3813800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19085 (or 19076 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 3813800 is about 1952.8952864913. The cubic root of 3813800 is about 156.2377483727.

Adding to 3813800 its reverse (83183), we get a palindrome (3896983).

The spelling of 3813800 in words is "three million, eight hundred thirteen thousand, eight hundred".