260644641 has 16 divisors (see below), whose sum is σ = 367141440. Its totient is φ = 164021760.

The previous prime is 260644627. The next prime is 260644711. The reversal of 260644641 is 146446062.

260644641 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 260644641 - 2⁵ = 260644609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260644541) 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, 7881 + ... + 24153.

It is an arithmetic number, because the mean of its divisors is an integer number (22946340).

Almost surely, 2^260644641 is an apocalyptic number.

It is an amenable number.

260644641 is a deficient number, since it is larger than the sum of its proper divisors (106496799).

260644641 is a wasteful number, since it uses less digits than its factorization.

260644641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16576.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 260644641 is about 16144.4925903541. The cubic root of 260644641 is about 638.7774847849. Note that the first 3 decimals are identical.

The spelling of 260644641 in words is "two hundred sixty million, six hundred forty-four thousand, six hundred forty-one".