256612244 has 24 divisors (see below), whose sum is σ = 513941568. Its totient is φ = 109823040.

The previous prime is 256612241. The next prime is 256612249. The reversal of 256612244 is 442216652.

It is a self number, because there is not a number n which added to its sum of digits gives 256612244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256612241) 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, 15287 + ... + 27329.

It is an arithmetic number, because the mean of its divisors is an integer number (21414232).

Almost surely, 2^256612244 is an apocalyptic number.

It is an amenable number.

256612244 is an abundant number, since it is smaller than the sum of its proper divisors (257329324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256612244 is a wasteful number, since it uses less digits than its factorization.

256612244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12815 (or 12813 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 256612244 is about 16019.1211993667. The cubic root of 256612244 is about 635.4662036125.

Adding to 256612244 its reverse (442216652), we get a palindrome (698828896).

The spelling of 256612244 in words is "two hundred fifty-six million, six hundred twelve thousand, two hundred forty-four".