256603470 has 16 divisors (see below), whose sum is σ = 615848400. Its totient is φ = 68427584.

The previous prime is 256603453. The next prime is 256603471. The reversal of 256603470 is 74306652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256603471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4276695 + ... + 4276754.

It is an arithmetic number, because the mean of its divisors is an integer number (38490525).

Almost surely, 2^256603470 is an apocalyptic number.

256603470 is an abundant number, since it is smaller than the sum of its proper divisors (359244930).

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

256603470 is a wasteful number, since it uses less digits than its factorization.

256603470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8553459.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 256603470 is about 16018.8473368092. The cubic root of 256603470 is about 635.4589609806.

The spelling of 256603470 in words is "two hundred fifty-six million, six hundred three thousand, four hundred seventy".