256282429 has 8 divisors (see below), whose sum is σ = 292231800. Its totient is φ = 222652416.

The previous prime is 256282423. The next prime is 256282457. The reversal of 256282429 is 924282652.

It can be written as a sum of positive squares in 4 ways, for example, as 13764100 + 242518329 = 3710^2 + 15573^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 256282429 - 2⁹ = 256281917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256282391 and 256282400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256282423) 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, 579604 + ... + 580045.

It is an arithmetic number, because the mean of its divisors is an integer number (36528975).

Almost surely, 2^256282429 is an apocalyptic number.

It is an amenable number.

256282429 is a deficient number, since it is larger than the sum of its proper divisors (35949371).

256282429 is a wasteful number, since it uses less digits than its factorization.

256282429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159679.

The product of its digits is 138240, while the sum is 40.

The square root of 256282429 is about 16008.8234733225. The cubic root of 256282429 is about 635.1938391840.

The spelling of 256282429 in words is "two hundred fifty-six million, two hundred eighty-two thousand, four hundred twenty-nine".