2600401204 has 12 divisors (see below), whose sum is σ = 4562403300. Its totient is φ = 1296857408.

The previous prime is 2600401201. The next prime is 2600401231. The reversal of 2600401204 is 4021040062.

It can be written as a sum of positive squares in 2 ways, for example, as 213101604 + 2387299600 = 14598^2 + 48860^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2600401201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834049 + ... + 837160.

It is an arithmetic number, because the mean of its divisors is an integer number (380200275).

Almost surely, 2^2600401204 is an apocalyptic number.

It is an amenable number.

2600401204 is a deficient number, since it is larger than the sum of its proper divisors (1962002096).

2600401204 is a wasteful number, since it uses less digits than its factorization.

2600401204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671602 (or 1671600 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2600401204 is about 50994.1291130656. The cubic root of 2600401204 is about 1375.1395920428.

Adding to 2600401204 its reverse (4021040062), we get a palindrome (6621441266).

The spelling of 2600401204 in words is "two billion, six hundred million, four hundred one thousand, two hundred four".