256396794 has 16 divisors (see below), whose sum is σ = 518972832. Its totient is φ = 84435728.

The previous prime is 256396793. The next prime is 256396799. The reversal of 256396794 is 497693652.

It is not an unprimeable number, because it can be changed into a prime (256396793) 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, 256929 + ... + 257924.

It is an arithmetic number, because the mean of its divisors is an integer number (32435802).

Almost surely, 2^256396794 is an apocalyptic number.

256396794 is an abundant number, since it is smaller than the sum of its proper divisors (262576038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256396794 is a wasteful number, since it uses less digits than its factorization.

256396794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514941.

The product of its digits is 2449440, while the sum is 51.

The square root of 256396794 is about 16012.3950113654. The cubic root of 256396794 is about 635.2883093625.

The spelling of 256396794 in words is "two hundred fifty-six million, three hundred ninety-six thousand, seven hundred ninety-four".