256766012 has 12 divisors (see below), whose sum is σ = 449520456. Its totient is φ = 128331600.

The previous prime is 256765961. The next prime is 256766047. The reversal of 256766012 is 210667652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239 + ... + 22662.

It is an arithmetic number, because the mean of its divisors is an integer number (37460038).

Almost surely, 2^256766012 is an apocalyptic number.

It is an amenable number.

256766012 is a deficient number, since it is larger than the sum of its proper divisors (192754444).

256766012 is a wasteful number, since it uses less digits than its factorization.

256766012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25708 (or 25706 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 256766012 is about 16023.9199948078. The cubic root of 256766012 is about 635.5931069571.

The spelling of 256766012 in words is "two hundred fifty-six million, seven hundred sixty-six thousand, twelve".