3630820 has 24 divisors (see below), whose sum is σ = 7660800. Its totient is φ = 1445472.

The previous prime is 3630817. The next prime is 3630821. The reversal of 3630820 is 280363.

It is a junction number, because it is equal to n+sod(n) for n = 3630791 and 3630800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3630821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7341 + ... + 7819.

It is an arithmetic number, because the mean of its divisors is an integer number (319200).

Almost surely, 2^3630820 is an apocalyptic number.

It is an amenable number.

3630820 is an abundant number, since it is smaller than the sum of its proper divisors (4029980).

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

3630820 is a wasteful number, since it uses less digits than its factorization.

3630820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3630820 is about 1905.4710703655. The cubic root of 3630820 is about 153.6980082870.

The spelling of 3630820 in words is "three million, six hundred thirty thousand, eight hundred twenty".