1648197604 has 27 divisors (see below), whose sum is σ = 2947489993. Its totient is φ = 806438672.

The previous prime is 1648197599. The next prime is 1648197623. The reversal of 1648197604 is 4067918461.

The square root of 1648197604 is 40598.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1188180900 + 460016704 = 34470^2 + 21448^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4303197 + ... + 4303579.

Almost surely, 2^1648197604 is an apocalyptic number.

1648197604 is the 40598-th square number.

It is an amenable number.

1648197604 is a deficient number, since it is larger than the sum of its proper divisors (1299292389).

1648197604 is an frugal number, since it uses more digits than its factorization.

1648197604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The cubic root of 1648197604 is about 1181.2353250923.

The spelling of 1648197604 in words is "one billion, six hundred forty-eight million, one hundred ninety-seven thousand, six hundred four".