256671202 has 8 divisors (see below), whose sum is σ = 407654316. Its totient is φ = 120786432.

The previous prime is 256671179. The next prime is 256671203. The reversal of 256671202 is 202176652.

It can be written as a sum of positive squares in 2 ways, for example, as 248724441 + 7946761 = 15771^2 + 2819^2 .

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

It is a super-2 number, since 2×256671202² = 131760211872249608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (256671203) 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 3 ways as a sum of consecutive naturals, for example, 3774543 + ... + 3774610.

Almost surely, 2^256671202 is an apocalyptic number.

256671202 is a deficient number, since it is larger than the sum of its proper divisors (150983114).

256671202 is a wasteful number, since it uses less digits than its factorization.

256671202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7549172.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 256671202 is about 16020.9613319551. The cubic root of 256671202 is about 635.5148671094.

The spelling of 256671202 in words is "two hundred fifty-six million, six hundred seventy-one thousand, two hundred two".