256090160 has 40 divisors (see below), whose sum is σ = 596211840. Its totient is φ = 102298112.

The previous prime is 256090157. The next prime is 256090171. The reversal of 256090160 is 61090652.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74561 + ... + 77919.

It is an arithmetic number, because the mean of its divisors is an integer number (14905296).

Almost surely, 2^256090160 is an apocalyptic number.

256090160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256090160 is an abundant number, since it is smaller than the sum of its proper divisors (340121680).

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

256090160 is a wasteful number, since it uses less digits than its factorization.

256090160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325 (or 4319 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 256090160 is about 16002.8172519716. The cubic root of 256090160 is about 635.0349537458.

The spelling of 256090160 in words is "two hundred fifty-six million, ninety thousand, one hundred sixty".