2604003261 has 8 divisors (see below), whose sum is σ = 3537514080. Its totient is φ = 1703247312.

The previous prime is 2604003247. The next prime is 2604003263. The reversal of 2604003261 is 1623004062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2604003261 - 2¹⁰ = 2604002237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2604003263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8188531 + ... + 8188848.

It is an arithmetic number, because the mean of its divisors is an integer number (442189260).

Almost surely, 2^2604003261 is an apocalyptic number.

It is an amenable number.

2604003261 is a deficient number, since it is larger than the sum of its proper divisors (933510819).

2604003261 is a wasteful number, since it uses less digits than its factorization.

2604003261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377435.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2604003261 is about 51029.4352408490. The cubic root of 2604003261 is about 1375.7742435776.

The spelling of 2604003261 in words is "two billion, six hundred four million, three thousand, two hundred sixty-one".