260526409 has 16 divisors (see below), whose sum is σ = 307871424. Its totient is φ = 217339200.

The previous prime is 260526397. The next prime is 260526419. The reversal of 260526409 is 904625062.

260526409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 260526409 - 2⁹ = 260525897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260526419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19474 + ... + 30004.

It is an arithmetic number, because the mean of its divisors is an integer number (19241964).

Almost surely, 2^260526409 is an apocalyptic number.

It is an amenable number.

260526409 is a deficient number, since it is larger than the sum of its proper divisors (47345015).

260526409 is a wasteful number, since it uses less digits than its factorization.

260526409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10728.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 260526409 is about 16140.8304928836. The cubic root of 260526409 is about 638.6808840878.

The spelling of 260526409 in words is "two hundred sixty million, five hundred twenty-six thousand, four hundred nine".