3621020304 has 80 divisors (see below), whose sum is σ = 10741812480. Its totient is φ = 1039524480.

The previous prime is 3621020303. The next prime is 3621020321. The reversal of 3621020304 is 4030201263.

It is a happy number.

It is a super-2 number, since 2×3621020304² = 26223576083960504832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3621020303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170442 + ... + 190505.

It is an arithmetic number, because the mean of its divisors is an integer number (134272656).

Almost surely, 2^3621020304 is an apocalyptic number.

It is an amenable number.

3621020304 is an abundant number, since it is smaller than the sum of its proper divisors (7120792176).

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

3621020304 is a wasteful number, since it uses less digits than its factorization.

3621020304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360988 (or 360982 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3621020304 is about 60174.9142417337. The cubic root of 3621020304 is about 1535.5960512737.

Adding to 3621020304 its reverse (4030201263), we get a palindrome (7651221567).

The spelling of 3621020304 in words is "three billion, six hundred twenty-one million, twenty thousand, three hundred four".