260728650 has 144 divisors (see below), whose sum is σ = 862278144. Its totient is φ = 55002240.

The previous prime is 260728649. The next prime is 260728669. The reversal of 260728650 is 56827062.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 37767 + ... + 44133.

Almost surely, 2^260728650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260728650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431139072).

260728650 is an abundant number, since it is smaller than the sum of its proper divisors (601549494).

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

260728650 is a wasteful number, since it uses less digits than its factorization.

260728650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6405 (or 6397 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 260728650 is about 16147.0941658244. The cubic root of 260728650 is about 638.8461060478.

The spelling of 260728650 in words is "two hundred sixty million, seven hundred twenty-eight thousand, six hundred fifty".