256101260 has 72 divisors (see below), whose sum is σ = 583130016. Its totient is φ = 94133760.

The previous prime is 256101257. The next prime is 256101283. The reversal of 256101260 is 62101652.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2486369 + ... + 2486471.

It is an arithmetic number, because the mean of its divisors is an integer number (8099028).

Almost surely, 2^256101260 is an apocalyptic number.

256101260 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 256101260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291565008).

256101260 is an abundant number, since it is smaller than the sum of its proper divisors (327028756).

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

256101260 is a wasteful number, since it uses less digits than its factorization.

256101260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 256101260 is about 16003.1640621472. The cubic root of 256101260 is about 635.0441286215.

The spelling of 256101260 in words is "two hundred fifty-six million, one hundred one thousand, two hundred sixty".