256295598 has 96 divisors (see below), whose sum is σ = 597663360. Its totient is φ = 73008000.

The previous prime is 256295593. The next prime is 256295629. The reversal of 256295598 is 895592652.

It is a self number, because there is not a number n which added to its sum of digits gives 256295598.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256295593) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1020973 + ... + 1021223.

It is an arithmetic number, because the mean of its divisors is an integer number (6225660).

Almost surely, 2^256295598 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256295598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298831680).

256295598 is an abundant number, since it is smaller than the sum of its proper divisors (341367762).

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

256295598 is a wasteful number, since it uses less digits than its factorization.

256295598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 341 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 51.

The square root of 256295598 is about 16009.2347724680. The cubic root of 256295598 is about 635.2047187495.

The spelling of 256295598 in words is "two hundred fifty-six million, two hundred ninety-five thousand, five hundred ninety-eight".