3813320 has 32 divisors (see below), whose sum is σ = 9806400. Its totient is φ = 1307328.

The previous prime is 3813317. The next prime is 3813323. The reversal of 3813320 is 233183.

It is an interprime number because it is at equal distance from previous prime (3813317) and next prime (3813323).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3813292 and 3813301.

It is not an unprimeable number, because it can be changed into a prime (3813323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6530 + ... + 7089.

It is an arithmetic number, because the mean of its divisors is an integer number (306450).

Almost surely, 2^3813320 is an apocalyptic number.

It is an amenable number.

3813320 is an abundant number, since it is smaller than the sum of its proper divisors (5993080).

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

3813320 is a wasteful number, since it uses less digits than its factorization.

3813320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13637 (or 13633 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3813320 is about 1952.7723881702. The cubic root of 3813320 is about 156.2311934698.

The spelling of 3813320 in words is "three million, eight hundred thirteen thousand, three hundred twenty".