260216440 has 64 divisors (see below), whose sum is σ = 652354560. Its totient is φ = 92603520.

The previous prime is 260216413. The next prime is 260216443. The reversal of 260216440 is 44612062.

260216440 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260216443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14389 + ... + 26971.

It is an arithmetic number, because the mean of its divisors is an integer number (10193040).

Almost surely, 2^260216440 is an apocalyptic number.

260216440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260216440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326177280).

260216440 is an abundant number, since it is smaller than the sum of its proper divisors (392138120).

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

260216440 is a wasteful number, since it uses less digits than its factorization.

260216440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12652 (or 12648 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 260216440 is about 16131.2256198963. The cubic root of 260216440 is about 638.4274870756.

The spelling of 260216440 in words is "two hundred sixty million, two hundred sixteen thousand, four hundred forty".