260365649 has 4 divisors (see below), whose sum is σ = 260413440. Its totient is φ = 260317860.

The previous prime is 260365639. The next prime is 260365663. The reversal of 260365649 is 946563062.

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 260365649 - 2¹² = 260361553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260365639) 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, 14489 + ... + 27030.

It is an arithmetic number, because the mean of its divisors is an integer number (65103360).

Almost surely, 2^260365649 is an apocalyptic number.

It is an amenable number.

260365649 is a deficient number, since it is larger than the sum of its proper divisors (47791).

260365649 is an equidigital number, since it uses as much as digits as its factorization.

260365649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47790.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 260365649 is about 16135.8498071840. The cubic root of 260365649 is about 638.5494892640.

The spelling of 260365649 in words is "two hundred sixty million, three hundred sixty-five thousand, six hundred forty-nine".