256027636 has 24 divisors (see below), whose sum is σ = 469419776. Its totient is φ = 122031360.

The previous prime is 256027621. The next prime is 256027637. The reversal of 256027636 is 636720652.

It is a junction number, because it is equal to n+sod(n) for n = 256027595 and 256027604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256027637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7101 + ... + 23716.

Almost surely, 2^256027636 is an apocalyptic number.

It is an amenable number.

256027636 is a deficient number, since it is larger than the sum of its proper divisors (213392140).

256027636 is a wasteful number, since it uses less digits than its factorization.

256027636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30919 (or 30917 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 256027636 is about 16000.8636016935. The cubic root of 256027636 is about 634.9832686190.

The spelling of 256027636 in words is "two hundred fifty-six million, twenty-seven thousand, six hundred thirty-six".