260560381 has 4 divisors (see below), whose sum is σ = 260784064. Its totient is φ = 260336700.

The previous prime is 260560379. The next prime is 260560397. The reversal of 260560381 is 183065062.

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, and also an emirpimes, since its reverse is a distinct semiprime: 183065062 = 2 ⋅91532531.

It is a cyclic number.

It is not a de Polignac number, because 260560381 - 2¹ = 260560379 is a prime.

It is a super-2 number, since 2×260560381² = 135783424293730322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260560351) 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, 110085 + ... + 112426.

It is an arithmetic number, because the mean of its divisors is an integer number (65196016).

Almost surely, 2^260560381 is an apocalyptic number.

It is an amenable number.

260560381 is a deficient number, since it is larger than the sum of its proper divisors (223683).

260560381 is a wasteful number, since it uses less digits than its factorization.

260560381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223682.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 260560381 is about 16141.8828207864. The cubic root of 260560381 is about 638.7086436843.

The spelling of 260560381 in words is "two hundred sixty million, five hundred sixty thousand, three hundred eighty-one".