3682816 has 20 divisors (see below), whose sum is σ = 7359462. Its totient is φ = 1841152.

The previous prime is 3682813. The next prime is 3682817. The reversal of 3682816 is 6182863.

It can be written as a sum of positive squares in only one way, i.e., 3625216 + 57600 = 1904^2 + 240^2 .

It is not an unprimeable number, because it can be changed into a prime (3682813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3085 + ... + 4108.

Almost surely, 2^3682816 is an apocalyptic number.

It is an amenable number.

3682816 is a deficient number, since it is larger than the sum of its proper divisors (3676646).

3682816 is an frugal number, since it uses more digits than its factorization.

3682816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7211 (or 7195 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 3682816 is about 1919.0664397045. The cubic root of 3682816 is about 154.4282228917.

The spelling of 3682816 in words is "three million, six hundred eighty-two thousand, eight hundred sixteen".