256834724 has 6 divisors (see below), whose sum is σ = 449460774. Its totient is φ = 128417360.

The previous prime is 256834693. The next prime is 256834763. The reversal of 256834724 is 427438652.

It can be written as a sum of positive squares in only one way, i.e., 166926400 + 89908324 = 12920^2 + 9482^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 32104337 + ... + 32104344.

It is an arithmetic number, because the mean of its divisors is an integer number (74910129).

Almost surely, 2^256834724 is an apocalyptic number.

It is an amenable number.

256834724 is a deficient number, since it is larger than the sum of its proper divisors (192626050).

256834724 is a wasteful number, since it uses less digits than its factorization.

256834724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64208685 (or 64208683 counting only the distinct ones).

The product of its digits is 322560, while the sum is 41.

The square root of 256834724 is about 16026.0638960413. The cubic root of 256834724 is about 635.6497979733.

The spelling of 256834724 in words is "two hundred fifty-six million, eight hundred thirty-four thousand, seven hundred twenty-four".