256244662 has 4 divisors (see below), whose sum is σ = 384366996. Its totient is φ = 128122330.

The previous prime is 256244657. The next prime is 256244669. The reversal of 256244662 is 266442652.

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

It is a super-2 number, since 2×256244662² = 131322653606988488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256244669) 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 as a sum of consecutive naturals, namely, 64061164 + ... + 64061167.

It is an arithmetic number, because the mean of its divisors is an integer number (96091749).

Almost surely, 2^256244662 is an apocalyptic number.

256244662 is a deficient number, since it is larger than the sum of its proper divisors (128122334).

256244662 is a wasteful number, since it uses less digits than its factorization.

256244662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128122333.

The product of its digits is 138240, while the sum is 37.

The square root of 256244662 is about 16007.6438616056. The cubic root of 256244662 is about 635.1626359209.

The spelling of 256244662 in words is "two hundred fifty-six million, two hundred forty-four thousand, six hundred sixty-two".