260646464 has 56 divisors (see below), whose sum is σ = 559003200. Its totient is φ = 119867904.

The previous prime is 260646457. The next prime is 260646487. The reversal of 260646464 is 464646062.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434837 + ... + 435435.

It is an arithmetic number, because the mean of its divisors is an integer number (9982200).

Almost surely, 2^260646464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260646464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279501600).

260646464 is an abundant number, since it is smaller than the sum of its proper divisors (298356736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260646464 is a wasteful number, since it uses less digits than its factorization.

260646464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 260646464 is about 16144.5490491373. The cubic root of 260646464 is about 638.7789740266.

The spelling of 260646464 in words is "two hundred sixty million, six hundred forty-six thousand, four hundred sixty-four".