256042006 has 8 divisors (see below), whose sum is σ = 418977864. Its totient is φ = 116382720.

The previous prime is 256041997. The next prime is 256042013. The reversal of 256042006 is 600240652.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5819115 + ... + 5819158.

It is an arithmetic number, because the mean of its divisors is an integer number (52372233).

Almost surely, 2^256042006 is an apocalyptic number.

256042006 is a deficient number, since it is larger than the sum of its proper divisors (162935858).

256042006 is a wasteful number, since it uses less digits than its factorization.

256042006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11638286.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 256042006 is about 16001.3126336560. The cubic root of 256042006 is about 634.9951482466.

Adding to 256042006 its reverse (600240652), we get a palindrome (856282658).

The spelling of 256042006 in words is "two hundred fifty-six million, forty-two thousand, six".