1602404648 has 16 divisors (see below), whose sum is σ = 3235624980. Its totient is φ = 739571328.

The previous prime is 1602404647. The next prime is 1602404711. The reversal of 1602404648 is 8464042061.

It can be written as a sum of positive squares in 2 ways, for example, as 1601440324 + 964324 = 40018^2 + 982^2 .

It is not an unprimeable number, because it can be changed into a prime (1602404647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7703765 + ... + 7703972.

Almost surely, 2^1602404648 is an apocalyptic number.

It is an amenable number.

1602404648 is an abundant number, since it is smaller than the sum of its proper divisors (1633220332).

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

1602404648 is a wasteful number, since it uses less digits than its factorization.

1602404648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15407756 (or 15407752 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 1602404648 is about 40030.0468148615. The cubic root of 1602404648 is about 1170.1927381117.

The spelling of 1602404648 in words is "one billion, six hundred two million, four hundred four thousand, six hundred forty-eight".