256202423 has 8 divisors (see below), whose sum is σ = 258550656. Its totient is φ = 253864800.

The previous prime is 256202413. The next prime is 256202449. The reversal of 256202423 is 324202652.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256202423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256202392 and 256202401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256202413) 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, 50618 + ... + 55448.

It is an arithmetic number, because the mean of its divisors is an integer number (32318832).

Almost surely, 2^256202423 is an apocalyptic number.

256202423 is a deficient number, since it is larger than the sum of its proper divisors (2348233).

256202423 is a wasteful number, since it uses less digits than its factorization.

256202423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 256202423 is about 16006.3244687842. The cubic root of 256202423 is about 635.1277342393.

The spelling of 256202423 in words is "two hundred fifty-six million, two hundred two thousand, four hundred twenty-three".