1602644404 has 6 divisors (see below), whose sum is σ = 2804627714. Its totient is φ = 801322200.

The previous prime is 1602644387. The next prime is 1602644411. The reversal of 1602644404 is 4044462061.

It can be written as a sum of positive squares in only one way, i.e., 1303354404 + 299290000 = 36102^2 + 17300^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 200330547 + ... + 200330554.

Almost surely, 2^1602644404 is an apocalyptic number.

It is an amenable number.

1602644404 is a deficient number, since it is larger than the sum of its proper divisors (1201983310).

1602644404 is a wasteful number, since it uses less digits than its factorization.

1602644404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400661105 (or 400661103 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 1602644404 is about 40033.0414033208. The cubic root of 1602644404 is about 1170.2510976401.

The spelling of 1602644404 in words is "one billion, six hundred two million, six hundred forty-four thousand, four hundred four".