256716246 has 16 divisors (see below), whose sum is σ = 517353408. Its totient is φ = 84918600.

The previous prime is 256716227. The next prime is 256716247. The reversal of 256716246 is 642617652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256716247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162520 + ... + 164091.

It is an arithmetic number, because the mean of its divisors is an integer number (32334588).

Almost surely, 2^256716246 is an apocalyptic number.

256716246 is an abundant number, since it is smaller than the sum of its proper divisors (260637162).

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

256716246 is a wasteful number, since it uses less digits than its factorization.

256716246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326747.

The product of its digits is 120960, while the sum is 39.

The square root of 256716246 is about 16022.3670535911. The cubic root of 256716246 is about 635.5520410724.

The spelling of 256716246 in words is "two hundred fifty-six million, seven hundred sixteen thousand, two hundred forty-six".