256375726 has 4 divisors (see below), whose sum is σ = 384563592. Its totient is φ = 128187862.

The previous prime is 256375699. The next prime is 256375729. The reversal of 256375726 is 627573652.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256375729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64093930 + ... + 64093933.

It is an arithmetic number, because the mean of its divisors is an integer number (96140898).

Almost surely, 2^256375726 is an apocalyptic number.

256375726 is a deficient number, since it is larger than the sum of its proper divisors (128187866).

256375726 is a wasteful number, since it uses less digits than its factorization.

256375726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128187865.

The product of its digits is 529200, while the sum is 43.

The square root of 256375726 is about 16011.7371324913. The cubic root of 256375726 is about 635.2709084420.

The spelling of 256375726 in words is "two hundred fifty-six million, three hundred seventy-five thousand, seven hundred twenty-six".