1604968768 has 28 divisors (see below), whose sum is σ = 3429850900. Its totient is φ = 740754432.

The previous prime is 1604968751. The next prime is 1604968787. The reversal of 1604968768 is 8678694061.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 936849664 + 668119104 = 30608^2 + 25848^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963693 + ... + 965356.

It is an arithmetic number, because the mean of its divisors is an integer number (122494675).

Almost surely, 2^1604968768 is an apocalyptic number.

It is an amenable number.

1604968768 is an abundant number, since it is smaller than the sum of its proper divisors (1824882132).

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

1604968768 is a wasteful number, since it uses less digits than its factorization.

1604968768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929074 (or 1929064 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 1604968768 is about 40062.0614546980. The cubic root of 1604968768 is about 1170.8165746239.

The spelling of 1604968768 in words is "one billion, six hundred four million, nine hundred sixty-eight thousand, seven hundred sixty-eight".