256115412 has 48 divisors (see below), whose sum is σ = 758862720. Its totient is φ = 73175616.

The previous prime is 256115407. The next prime is 256115413. The reversal of 256115412 is 214511652.

256115412 is a `hidden beast` number, since 2 + 5 + 611 + 5 + 41 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256115413) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 168633 + ... + 170144.

It is an arithmetic number, because the mean of its divisors is an integer number (15809640).

Almost surely, 2^256115412 is an apocalyptic number.

It is an amenable number.

256115412 is an abundant number, since it is smaller than the sum of its proper divisors (502747308).

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

256115412 is a wasteful number, since it uses less digits than its factorization.

256115412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338797 (or 338789 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 256115412 is about 16003.6062185996. The cubic root of 256115412 is about 635.0558257903.

The spelling of 256115412 in words is "two hundred fifty-six million, one hundred fifteen thousand, four hundred twelve".