256371412 has 18 divisors (see below), whose sum is σ = 493145114. Its totient is φ = 116532240.

The previous prime is 256371383. The next prime is 256371419. The reversal of 256371412 is 214173652.

It can be written as a sum of positive squares in only one way, i.e., 163942416 + 92428996 = 12804^2 + 9614^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256371419) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 264363 + ... + 265330.

Almost surely, 2^256371412 is an apocalyptic number.

256371412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

256371412 is a deficient number, since it is larger than the sum of its proper divisors (236773702).

256371412 is a wasteful number, since it uses less digits than its factorization.

256371412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529719 (or 529706 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 256371412 is about 16011.6024182466. The cubic root of 256371412 is about 635.2673452158.

The spelling of 256371412 in words is "two hundred fifty-six million, three hundred seventy-one thousand, four hundred twelve".