256242322 has 32 divisors (see below), whose sum is σ = 463478400. Its totient is φ = 103794048.

The previous prime is 256242317. The next prime is 256242359. The reversal of 256242322 is 223242652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150508 + ... + 152200.

It is an arithmetic number, because the mean of its divisors is an integer number (14483700).

Almost surely, 2^256242322 is an apocalyptic number.

256242322 is a deficient number, since it is larger than the sum of its proper divisors (207236078).

256242322 is a wasteful number, since it uses less digits than its factorization.

256242322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290.

The product of its digits is 11520, while the sum is 28.

The square root of 256242322 is about 16007.5707713569. The cubic root of 256242322 is about 635.1607025016.

Adding to 256242322 its reverse (223242652), we get a palindrome (479484974).

The spelling of 256242322 in words is "two hundred fifty-six million, two hundred forty-two thousand, three hundred twenty-two".