260494609 has 4 divisors (see below), whose sum is σ = 261844516. Its totient is φ = 259144704.

The previous prime is 260494589. The next prime is 260494613. The reversal of 260494609 is 906494062.

260494609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 150307600 + 110187009 = 12260^2 + 10497^2 .

It is a cyclic number.

It is not a de Polignac number, because 260494609 - 2²⁷ = 126276881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260494109) 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, 674664 + ... + 675049.

It is an arithmetic number, because the mean of its divisors is an integer number (65461129).

Almost surely, 2^260494609 is an apocalyptic number.

It is an amenable number.

260494609 is a deficient number, since it is larger than the sum of its proper divisors (1349907).

260494609 is a wasteful number, since it uses less digits than its factorization.

260494609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349906.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 260494609 is about 16139.8453833982. The cubic root of 260494609 is about 638.6548971145.

The spelling of 260494609 in words is "two hundred sixty million, four hundred ninety-four thousand, six hundred nine".