256654322 has 4 divisors (see below), whose sum is σ = 384981486. Its totient is φ = 128327160.

The previous prime is 256654319. The next prime is 256654339. The reversal of 256654322 is 223456652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 169026001 + 87628321 = 13001^2 + 9361^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 64163579 + ... + 64163582.

Almost surely, 2^256654322 is an apocalyptic number.

256654322 is a deficient number, since it is larger than the sum of its proper divisors (128327164).

256654322 is a wasteful number, since it uses less digits than its factorization.

256654322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128327163.

The product of its digits is 86400, while the sum is 35.

The square root of 256654322 is about 16020.4345134581. The cubic root of 256654322 is about 635.5009352438.

The spelling of 256654322 in words is "two hundred fifty-six million, six hundred fifty-four thousand, three hundred twenty-two".