1604822816 has 24 divisors (see below), whose sum is σ = 3170677104. Its totient is φ = 799571520.

The previous prime is 1604822809. The next prime is 1604822837. The reversal of 1604822816 is 6182284061.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1604822816.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79550 + ... + 97661.

It is an arithmetic number, because the mean of its divisors is an integer number (132111546).

Almost surely, 2^1604822816 is an apocalyptic number.

1604822816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1604822816 is a deficient number, since it is larger than the sum of its proper divisors (1565854288).

1604822816 is a wasteful number, since it uses less digits than its factorization.

1604822816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177504 (or 177496 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 1604822816 is about 40060.2398395217. The cubic root of 1604822816 is about 1170.7810831335.

The spelling of 1604822816 in words is "one billion, six hundred four million, eight hundred twenty-two thousand, eight hundred sixteen".