256970260 has 48 divisors (see below), whose sum is σ = 568778112. Its totient is φ = 97328000.

The previous prime is 256970257. The next prime is 256970267. The reversal of 256970260 is 62079652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256970267) 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, 43695 + ... + 49225.

It is an arithmetic number, because the mean of its divisors is an integer number (11849544).

Almost surely, 2^256970260 is an apocalyptic number.

256970260 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 256970260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284389056).

256970260 is an abundant number, since it is smaller than the sum of its proper divisors (311807852).

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

256970260 is a wasteful number, since it uses less digits than its factorization.

256970260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664 (or 5662 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 256970260 is about 16030.2919499303. The cubic root of 256970260 is about 635.7615926705.

The spelling of 256970260 in words is "two hundred fifty-six million, nine hundred seventy thousand, two hundred sixty".