2604401 has 2 divisors, whose sum is σ = 2604402. Its totient is φ = 2604400.

The previous prime is 2604391. The next prime is 2604431. The reversal of 2604401 is 1044062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2002225 + 602176 = 1415^2 + 776^2 .

It is a cyclic number.

It is not a de Polignac number, because 2604401 - 2¹⁸ = 2342257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2604401.

It is not a weakly prime, because it can be changed into another prime (2604431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302200 + 1302201.

It is an arithmetic number, because the mean of its divisors is an integer number (1302201).

2^2604401 is an apocalyptic number.

It is an amenable number.

2604401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2604401 is an equidigital number, since it uses as much as digits as its factorization.

2604401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2604401 is about 1613.8156648143. The cubic root of 2604401 is about 137.5844285888.

Adding to 2604401 its reverse (1044062), we get a palindrome (3648463).

The spelling of 2604401 in words is "two million, six hundred four thousand, four hundred one".