256386214 has 32 divisors (see below), whose sum is σ = 467173440. Its totient is φ = 103016448.

The previous prime is 256386199. The next prime is 256386217. The reversal of 256386214 is 412683652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256386217) 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, 63982 + ... + 67870.

It is an arithmetic number, because the mean of its divisors is an integer number (14599170).

Almost surely, 2^256386214 is an apocalyptic number.

256386214 is a deficient number, since it is larger than the sum of its proper divisors (210787226).

256386214 is a wasteful number, since it uses less digits than its factorization.

256386214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4192.

The product of its digits is 69120, while the sum is 37.

The square root of 256386214 is about 16012.0646388903. The cubic root of 256386214 is about 635.2795710281.

The spelling of 256386214 in words is "two hundred fifty-six million, three hundred eighty-six thousand, two hundred fourteen".