255943394 has 16 divisors (see below), whose sum is σ = 439083456. Its totient is φ = 109609200.

The previous prime is 255943367. The next prime is 255943397. The reversal of 255943394 is 493349552.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255943397) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15464 + ... + 27404.

It is an arithmetic number, because the mean of its divisors is an integer number (27442716).

Almost surely, 2^255943394 is an apocalyptic number.

255943394 is a deficient number, since it is larger than the sum of its proper divisors (183140062).

255943394 is a wasteful number, since it uses less digits than its factorization.

255943394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13481.

The product of its digits is 583200, while the sum is 44.

The square root of 255943394 is about 15998.2309647036. The cubic root of 255943394 is about 634.9136171166.

The spelling of 255943394 in words is "two hundred fifty-five million, nine hundred forty-three thousand, three hundred ninety-four".