256105322 has 64 divisors (see below), whose sum is σ = 467804160. Its totient is φ = 103857600.

The previous prime is 256105321. The next prime is 256105331. The reversal of 256105322 is 223501652.

It is a junction number, because it is equal to n+sod(n) for n = 256105291 and 256105300.

It is not an unprimeable number, because it can be changed into a prime (256105321) 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 31 ways as a sum of consecutive naturals, for example, 454613 + ... + 455175.

It is an arithmetic number, because the mean of its divisors is an integer number (7309440).

Almost surely, 2^256105322 is an apocalyptic number.

256105322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256105322 is a deficient number, since it is larger than the sum of its proper divisors (211698838).

256105322 is a wasteful number, since it uses less digits than its factorization.

256105322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 256105322 is about 16003.2909740466. The cubic root of 256105322 is about 635.0474860638.

Adding to 256105322 its reverse (223501652), we get a palindrome (479606974).

The spelling of 256105322 in words is "two hundred fifty-six million, one hundred five thousand, three hundred twenty-two".