260240816 has 80 divisors (see below), whose sum is σ = 569213568. Its totient is φ = 114240000.

The previous prime is 260240803. The next prime is 260240821. The reversal of 260240816 is 618042062.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1036691 + ... + 1036941.

Almost surely, 2^260240816 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 260240816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284606784).

260240816 is an abundant number, since it is smaller than the sum of its proper divisors (308972752).

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

260240816 is a wasteful number, since it uses less digits than its factorization.

260240816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 260240816 is about 16131.9811554564. The cubic root of 260240816 is about 638.4474215354.

Adding to 260240816 its reverse (618042062), we get a palindrome (878282878).

The spelling of 260240816 in words is "two hundred sixty million, two hundred forty thousand, eight hundred sixteen".