256265734 has 8 divisors (see below), whose sum is σ = 384982128. Its totient is φ = 127938360.

The previous prime is 256265717. The next prime is 256265741. The reversal of 256265734 is 437562652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95602 + ... + 98245.

It is an arithmetic number, because the mean of its divisors is an integer number (48122766).

Almost surely, 2^256265734 is an apocalyptic number.

256265734 is a deficient number, since it is larger than the sum of its proper divisors (128716394).

256265734 is a wasteful number, since it uses less digits than its factorization.

256265734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194510.

The product of its digits is 302400, while the sum is 40.

The square root of 256265734 is about 16008.3020336324. The cubic root of 256265734 is about 635.1800460790.

The spelling of 256265734 in words is "two hundred fifty-six million, two hundred sixty-five thousand, seven hundred thirty-four".