256681302 has 16 divisors (see below), whose sum is σ = 529923072. Its totient is φ = 82800360.

The previous prime is 256681297. The next prime is 256681379. The reversal of 256681302 is 203186652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689818 + ... + 690189.

It is an arithmetic number, because the mean of its divisors is an integer number (33120192).

Almost surely, 2^256681302 is an apocalyptic number.

256681302 is an abundant number, since it is smaller than the sum of its proper divisors (273241770).

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

256681302 is a wasteful number, since it uses less digits than its factorization.

256681302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380043.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 256681302 is about 16021.2765409002. The cubic root of 256681302 is about 635.5232028270.

The spelling of 256681302 in words is "two hundred fifty-six million, six hundred eighty-one thousand, three hundred two".