3628816 has 20 divisors (see below), whose sum is σ = 7062172. Its totient is φ = 1806336.

The previous prime is 3628811. The next prime is 3628819. The reversal of 3628816 is 6188263.

It can be written as a sum of positive squares in 2 ways, for example, as 1081600 + 2547216 = 1040^2 + 1596^2 .

It is not an unprimeable number, because it can be changed into a prime (3628811) 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, 5056 + ... + 5728.

Almost surely, 2^3628816 is an apocalyptic number.

It is an amenable number.

3628816 is a deficient number, since it is larger than the sum of its proper divisors (3433356).

3628816 is a wasteful number, since it uses less digits than its factorization.

3628816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 1012 counting only the distinct ones).

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

The square root of 3628816 is about 1904.9451435671. The cubic root of 3628816 is about 153.6697256499.

It can be divided in two parts, 3628 and 816, that added together give a palindrome (4444).

The spelling of 3628816 in words is "three million, six hundred twenty-eight thousand, eight hundred sixteen".