2604004 has 12 divisors (see below), whose sum is σ = 4907644. Its totient is φ = 1201824.

The previous prime is 2603981. The next prime is 2604011. The reversal of 2604004 is 4004062.

It can be written as a sum of positive squares in 2 ways, for example, as 1276900 + 1327104 = 1130^2 + 1152^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24987 + ... + 25090.

2^2604004 is an apocalyptic number.

It is an amenable number.

2604004 is a deficient number, since it is larger than the sum of its proper divisors (2303640).

2604004 is a wasteful number, since it uses less digits than its factorization.

2604004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50094 (or 50092 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2604004 is about 1613.6926597094. The cubic root of 2604004 is about 137.5774373723.

Adding to 2604004 its reverse (4004062), we get a palindrome (6608066).

The spelling of 2604004 in words is "two million, six hundred four thousand, four".