1602604904 has 8 divisors (see below), whose sum is σ = 3004884210. Its totient is φ = 801302448.

The previous prime is 1602604903. The next prime is 1602604907. The reversal of 1602604904 is 4094062061.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1274632804 + 327972100 = 35702^2 + 18110^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1602604903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100162799 + ... + 100162814.

Almost surely, 2^1602604904 is an apocalyptic number.

It is an amenable number.

1602604904 is a deficient number, since it is larger than the sum of its proper divisors (1402279306).

1602604904 is a wasteful number, since it uses less digits than its factorization.

1602604904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200325619 (or 200325615 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1602604904 is about 40032.5480577992. The cubic root of 1602604904 is about 1170.2414832598.

Adding to 1602604904 its reverse (4094062061), we get a palindrome (5696666965).

The spelling of 1602604904 in words is "one billion, six hundred two million, six hundred four thousand, nine hundred four".