256144036 has 12 divisors (see below), whose sum is σ = 448421680. Its totient is φ = 128023560.

The previous prime is 256144027. The next prime is 256144039. The reversal of 256144036 is 630441652.

It is a junction number, because it is equal to n+sod(n) for n = 256143989 and 256144007.

It is not an unprimeable number, because it can be changed into a prime (256144039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1471 + ... + 22681.

Almost surely, 2^256144036 is an apocalyptic number.

It is an amenable number.

256144036 is a deficient number, since it is larger than the sum of its proper divisors (192277644).

256144036 is a wasteful number, since it uses less digits than its factorization.

256144036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24234 (or 24232 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 256144036 is about 16004.5004920491. The cubic root of 256144036 is about 635.0794833029.

Adding to 256144036 its reverse (630441652), we get a palindrome (886585688).

The spelling of 256144036 in words is "two hundred fifty-six million, one hundred forty-four thousand, thirty-six".