256794770 has 16 divisors (see below), whose sum is σ = 482328000. Its totient is φ = 98251824.

The previous prime is 256794737. The next prime is 256794787. The reversal of 256794770 is 77497652.

It is an unprimeable number.

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, 558020 + ... + 558479.

It is an arithmetic number, because the mean of its divisors is an integer number (30145500).

Almost surely, 2^256794770 is an apocalyptic number.

256794770 is a deficient number, since it is larger than the sum of its proper divisors (225533230).

256794770 is a wasteful number, since it uses less digits than its factorization.

256794770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116529.

The product of its (nonzero) digits is 740880, while the sum is 47.

The square root of 256794770 is about 16024.8173156514. The cubic root of 256794770 is about 635.6168350511.

The spelling of 256794770 in words is "two hundred fifty-six million, seven hundred ninety-four thousand, seven hundred seventy".