260643416 has 64 divisors (see below), whose sum is σ = 557172000. Its totient is φ = 113218560.

The previous prime is 260643401. The next prime is 260643421. The reversal of 260643416 is 614346062.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277700 + ... + 278636.

Almost surely, 2^260643416 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 260643416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278586000).

260643416 is an abundant number, since it is smaller than the sum of its proper divisors (296528584).

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

260643416 is a wasteful number, since it uses less digits than its factorization.

260643416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 260643416 is about 16144.4546516753. The cubic root of 260643416 is about 638.7764840563.

Adding to 260643416 its reverse (614346062), we get a palindrome (874989478).

The spelling of 260643416 in words is "two hundred sixty million, six hundred forty-three thousand, four hundred sixteen".