256626246 has 32 divisors (see below), whose sum is σ = 530915328. Its totient is φ = 82609920.

The previous prime is 256626241. The next prime is 256626259. The reversal of 256626246 is 642626652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256626241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111766 + ... + 114038.

It is an arithmetic number, because the mean of its divisors is an integer number (16591104).

Almost surely, 2^256626246 is an apocalyptic number.

256626246 is an abundant number, since it is smaller than the sum of its proper divisors (274289082).

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

256626246 is a wasteful number, since it uses less digits than its factorization.

256626246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916.

The product of its digits is 207360, while the sum is 39.

The square root of 256626246 is about 16019.5582336093. The cubic root of 256626246 is about 635.4777614345.

The spelling of 256626246 in words is "two hundred fifty-six million, six hundred twenty-six thousand, two hundred forty-six".