260263581 has 8 divisors (see below), whose sum is σ = 354401664. Its totient is φ = 169817280.

The previous prime is 260263579. The next prime is 260263621. The reversal of 260263581 is 185362062.

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

It is not a de Polignac number, because 260263581 - 2¹ = 260263579 is a prime.

It is a super-2 number, since 2×260263581² = 135474263189887122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260263511) 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, 922780 + ... + 923061.

It is an arithmetic number, because the mean of its divisors is an integer number (44300208).

Almost surely, 2^260263581 is an apocalyptic number.

It is an amenable number.

260263581 is a deficient number, since it is larger than the sum of its proper divisors (94138083).

260263581 is a wasteful number, since it uses less digits than its factorization.

260263581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845891.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 260263581 is about 16132.6867260230. The cubic root of 260263581 is about 638.4660374107.

The spelling of 260263581 in words is "two hundred sixty million, two hundred sixty-three thousand, five hundred eighty-one".