256826360 has 32 divisors (see below), whose sum is σ = 660411360. Its totient is φ = 88054656.

The previous prime is 256826357. The next prime is 256826369. The reversal of 256826360 is 63628652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256826369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458339 + ... + 458898.

It is an arithmetic number, because the mean of its divisors is an integer number (20637855).

Almost surely, 2^256826360 is an apocalyptic number.

256826360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256826360 is an abundant number, since it is smaller than the sum of its proper divisors (403585000).

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

256826360 is a wasteful number, since it uses less digits than its factorization.

256826360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917255 (or 917251 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 256826360 is about 16025.8029440025. The cubic root of 256826360 is about 635.6428977737.

The spelling of 256826360 in words is "two hundred fifty-six million, eight hundred twenty-six thousand, three hundred sixty".