260289481 has 4 divisors (see below), whose sum is σ = 260969472. Its totient is φ = 259609492.

The previous prime is 260289461. The next prime is 260289503. The reversal of 260289481 is 184982062.

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.

It is a cyclic number.

It is not a de Polignac number, because 260289481 - 2¹³ = 260281289 is a prime.

It is a super-2 number, since 2×260289481² = 135501227838498722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260289401) 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, 339421 + ... + 340186.

It is an arithmetic number, because the mean of its divisors is an integer number (65242368).

Almost surely, 2^260289481 is an apocalyptic number.

It is an amenable number.

260289481 is a deficient number, since it is larger than the sum of its proper divisors (679991).

260289481 is an equidigital number, since it uses as much as digits as its factorization.

260289481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679990.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 260289481 is about 16133.4894241760. The cubic root of 260289481 is about 638.4872155843.

The spelling of 260289481 in words is "two hundred sixty million, two hundred eighty-nine thousand, four hundred eighty-one".