256959748 has 6 divisors (see below), whose sum is σ = 449679566. Its totient is φ = 128479872.

The previous prime is 256959737. The next prime is 256959757. The reversal of 256959748 is 847959652.

It can be written as a sum of positive squares in only one way, i.e., 195776064 + 61183684 = 13992^2 + 7822^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32119965 + ... + 32119972.

Almost surely, 2^256959748 is an apocalyptic number.

It is an amenable number.

256959748 is a deficient number, since it is larger than the sum of its proper divisors (192719818).

256959748 is a wasteful number, since it uses less digits than its factorization.

256959748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64239941 (or 64239939 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 55.

The square root of 256959748 is about 16029.9640673334. The cubic root of 256959748 is about 635.7529234222.

The spelling of 256959748 in words is "two hundred fifty-six million, nine hundred fifty-nine thousand, seven hundred forty-eight".