4005604 has 6 divisors (see below), whose sum is σ = 7009814. Its totient is φ = 2002800.

The previous prime is 4005553. The next prime is 4005613. The reversal of 4005604 is 4065004.

It can be written as a sum of positive squares in only one way, i.e., 2310400 + 1695204 = 1520^2 + 1302^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 500697 + ... + 500704.

Almost surely, 2^4005604 is an apocalyptic number.

It is an amenable number.

4005604 is a deficient number, since it is larger than the sum of its proper divisors (3004210).

4005604 is a wasteful number, since it uses less digits than its factorization.

4005604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001405 (or 1001403 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4005604 is about 2001.4005096432. The cubic root of 4005604 is about 158.8142022334.

The spelling of 4005604 in words is "four million, five thousand, six hundred four".