256479230 has 24 divisors (see below), whose sum is σ = 537037128. Its totient is φ = 87935568.

The previous prime is 256479217. The next prime is 256479239. The reversal of 256479230 is 32974652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256479239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261224 + ... + 262203.

It is an arithmetic number, because the mean of its divisors is an integer number (22376547).

Almost surely, 2^256479230 is an apocalyptic number.

256479230 is an abundant number, since it is smaller than the sum of its proper divisors (280557898).

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

256479230 is a wasteful number, since it uses less digits than its factorization.

256479230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523448 (or 523441 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 256479230 is about 16014.9689353430. The cubic root of 256479230 is about 635.3563874568.

The spelling of 256479230 in words is "two hundred fifty-six million, four hundred seventy-nine thousand, two hundred thirty".