2604405273 has 4 divisors (see below), whose sum is σ = 3472540368. Its totient is φ = 1736270180.

The previous prime is 2604405269. The next prime is 2604405311. The reversal of 2604405273 is 3725044062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2604405273 - 2² = 2604405269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2604405203) 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, 434067543 + ... + 434067548.

It is an arithmetic number, because the mean of its divisors is an integer number (868135092).

Almost surely, 2^2604405273 is an apocalyptic number.

It is an amenable number.

2604405273 is a deficient number, since it is larger than the sum of its proper divisors (868135095).

2604405273 is an equidigital number, since it uses as much as digits as its factorization.

2604405273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868135094.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 2604405273 is about 51033.3741094982. The cubic root of 2604405273 is about 1375.8450383297.

The spelling of 2604405273 in words is "two billion, six hundred four million, four hundred five thousand, two hundred seventy-three".