256490283 has 8 divisors (see below), whose sum is σ = 390842368. Its totient is φ = 146565864.

The previous prime is 256490281. The next prime is 256490303. The reversal of 256490283 is 382094652.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256490283 - 2¹ = 256490281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256490281) 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 7 ways as a sum of consecutive naturals, for example, 6106891 + ... + 6106932.

It is an arithmetic number, because the mean of its divisors is an integer number (48855296).

Almost surely, 2^256490283 is an apocalyptic number.

256490283 is a deficient number, since it is larger than the sum of its proper divisors (134352085).

256490283 is a wasteful number, since it uses less digits than its factorization.

256490283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12213833.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 256490283 is about 16015.3140150295. The cubic root of 256490283 is about 635.3655142430.

The spelling of 256490283 in words is "two hundred fifty-six million, four hundred ninety thousand, two hundred eighty-three".