256144160 has 24 divisors (see below), whose sum is σ = 605140956. Its totient is φ = 102457600.

The previous prime is 256144157. The next prime is 256144171. The reversal of 256144160 is 61441652.

It can be written as a sum of positive squares in 2 ways, for example, as 233600656 + 22543504 = 15284^2 + 4748^2 .

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, 800291 + ... + 800610.

Almost surely, 2^256144160 is an apocalyptic number.

256144160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256144160 is an abundant number, since it is smaller than the sum of its proper divisors (348996796).

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

256144160 is a wasteful number, since it uses less digits than its factorization.

256144160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600916 (or 1600908 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 256144160 is about 16004.5043659590. The cubic root of 256144160 is about 635.0795857841.

The spelling of 256144160 in words is "two hundred fifty-six million, one hundred forty-four thousand, one hundred sixty".