256898260 has 12 divisors (see below), whose sum is σ = 539486388. Its totient is φ = 102759296.

The previous prime is 256898231. The next prime is 256898273. The reversal of 256898260 is 62898652.

It can be written as a sum of positive squares in 2 ways, for example, as 116380944 + 140517316 = 10788^2 + 11854^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 256898260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6422437 + ... + 6422476.

It is an arithmetic number, because the mean of its divisors is an integer number (44957199).

Almost surely, 2^256898260 is an apocalyptic number.

256898260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256898260 is an abundant number, since it is smaller than the sum of its proper divisors (282588128).

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

256898260 is a wasteful number, since it uses less digits than its factorization.

256898260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12844922 (or 12844920 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 256898260 is about 16028.0460443561. The cubic root of 256898260 is about 635.7022095205.

The spelling of 256898260 in words is "two hundred fifty-six million, eight hundred ninety-eight thousand, two hundred sixty".