256982006 has 8 divisors (see below), whose sum is σ = 386247000. Its totient is φ = 128233008.

The previous prime is 256981999. The next prime is 256982017. The reversal of 256982006 is 600289652.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127751 + ... + 129746.

It is an arithmetic number, because the mean of its divisors is an integer number (48280875).

Almost surely, 2^256982006 is an apocalyptic number.

256982006 is a deficient number, since it is larger than the sum of its proper divisors (129264994).

256982006 is a wasteful number, since it uses less digits than its factorization.

256982006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257998.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 256982006 is about 16030.6583146170. The cubic root of 256982006 is about 635.7712793192.

The spelling of 256982006 in words is "two hundred fifty-six million, nine hundred eighty-two thousand, six".