256770743 has 8 divisors (see below), whose sum is σ = 263532528. Its totient is φ = 250080064.

The previous prime is 256770721. The next prime is 256770751. The reversal of 256770743 is 347077652.

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

It is a cyclic number.

It is not a de Polignac number, because 256770743 - 2⁸ = 256770487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256770743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256770043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10421 + ... + 24942.

It is an arithmetic number, because the mean of its divisors is an integer number (32941566).

Almost surely, 2^256770743 is an apocalyptic number.

256770743 is a deficient number, since it is larger than the sum of its proper divisors (6761785).

256770743 is a wasteful number, since it uses less digits than its factorization.

256770743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35553.

The product of its (nonzero) digits is 246960, while the sum is 41.

The square root of 256770743 is about 16024.0676171814. The cubic root of 256770743 is about 635.5970106053.

The spelling of 256770743 in words is "two hundred fifty-six million, seven hundred seventy thousand, seven hundred forty-three".