260011728 has 80 divisors (see below), whose sum is σ = 766548160. Its totient is φ = 84322944.

The previous prime is 260011699. The next prime is 260011769. The reversal of 260011728 is 827110062.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7851 + ... + 24117.

It is an arithmetic number, because the mean of its divisors is an integer number (9581852).

Almost surely, 2^260011728 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 260011728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383274080).

260011728 is an abundant number, since it is smaller than the sum of its proper divisors (506536432).

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

260011728 is a wasteful number, since it uses less digits than its factorization.

260011728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16321 (or 16309 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 260011728 is about 16124.8791623379. The cubic root of 260011728 is about 638.2600264097.

The spelling of 260011728 in words is "two hundred sixty million, eleven thousand, seven hundred twenty-eight".