256793546 has 8 divisors (see below), whose sum is σ = 385866624. Its totient is φ = 128171340.

The previous prime is 256793519. The next prime is 256793557. The reversal of 256793546 is 645397652.

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

It is a self number, because there is not a number n which added to its sum of digits gives 256793546.

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 in 3 ways as a sum of consecutive naturals, for example, 111290 + ... + 113573.

It is an arithmetic number, because the mean of its divisors is an integer number (48233328).

Almost surely, 2^256793546 is an apocalyptic number.

256793546 is a deficient number, since it is larger than the sum of its proper divisors (129073078).

256793546 is a wasteful number, since it uses less digits than its factorization.

256793546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225436.

The product of its digits is 1360800, while the sum is 47.

The square root of 256793546 is about 16024.7791248429. The cubic root of 256793546 is about 635.6158251704.

The spelling of 256793546 in words is "two hundred fifty-six million, seven hundred ninety-three thousand, five hundred forty-six".