1604340224 has 40 divisors (see below), whose sum is σ = 3228751680. Its totient is φ = 796363776.

The previous prime is 1604340203. The next prime is 1604340247. The reversal of 1604340224 is 4220434061.

It is a junction number, because it is equal to n+sod(n) for n = 1604340193 and 1604340202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59897 + ... + 82439.

It is an arithmetic number, because the mean of its divisors is an integer number (80718792).

Almost surely, 2^1604340224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1604340224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1614375840).

1604340224 is an abundant number, since it is smaller than the sum of its proper divisors (1624411456).

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

1604340224 is an equidigital number, since it uses as much as digits as its factorization.

1604340224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22700 (or 22684 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1604340224 is about 40054.2160577385. The cubic root of 1604340224 is about 1170.6637147812.

Adding to 1604340224 its reverse (4220434061), we get a palindrome (5824774285).

The spelling of 1604340224 in words is "one billion, six hundred four million, three hundred forty thousand, two hundred twenty-four".