256243106 has 16 divisors (see below), whose sum is σ = 449490624. Its totient is φ = 107264304.

The previous prime is 256243087. The next prime is 256243109. The reversal of 256243106 is 601342652.

It is not an unprimeable number, because it can be changed into a prime (256243109) 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, 212225 + ... + 213428.

It is an arithmetic number, because the mean of its divisors is an integer number (28093164).

Almost surely, 2^256243106 is an apocalyptic number.

256243106 is a deficient number, since it is larger than the sum of its proper divisors (193247518).

256243106 is a wasteful number, since it uses less digits than its factorization.

256243106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425705.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 256243106 is about 16007.5952597509. The cubic root of 256243106 is about 635.1613502810.

Adding to 256243106 its reverse (601342652), we get a palindrome (857585758).

The spelling of 256243106 in words is "two hundred fifty-six million, two hundred forty-three thousand, one hundred six".