260006644 has 12 divisors (see below), whose sum is σ = 462471268. Its totient is φ = 127872000.

The previous prime is 260006609. The next prime is 260006671. The reversal of 260006644 is 446600062.

It can be written as a sum of positive squares in 2 ways, for example, as 88134544 + 171872100 = 9388^2 + 13110^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532557 + ... + 533044.

Almost surely, 2^260006644 is an apocalyptic number.

It is an amenable number.

260006644 is a deficient number, since it is larger than the sum of its proper divisors (202464624).

260006644 is a wasteful number, since it uses less digits than its factorization.

260006644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065666 (or 1065664 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 260006644 is about 16124.7215169751. The cubic root of 260006644 is about 638.2558664241.

The spelling of 260006644 in words is "two hundred sixty million, six thousand, six hundred forty-four".