256450044246 has 64 divisors (see below), whose sum is σ = 588310560000. Its totient is φ = 73802332800.

The previous prime is 256450044239. The next prime is 256450044259. The reversal of 256450044246 is 642440054652.

It is a junction number, because it is equal to n+sod(n) for n = 256450044198 and 256450044207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 981496 + ... + 1215003.

It is an arithmetic number, because the mean of its divisors is an integer number (9192352500).

Almost surely, 2^256450044246 is an apocalyptic number.

256450044246 is an abundant number, since it is smaller than the sum of its proper divisors (331860515754).

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

256450044246 is a wasteful number, since it uses less digits than its factorization.

256450044246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196605.

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 256450044246 its reverse (642440054652), we get a palindrome (898890098898).

The spelling of 256450044246 in words is "two hundred fifty-six billion, four hundred fifty million, forty-four thousand, two hundred forty-six".