256206322 has 8 divisors (see below), whose sum is σ = 389174400. Its totient is φ = 126481524.

The previous prime is 256206311. The next prime is 256206323. The reversal of 256206322 is 223602652.

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

It is not an unprimeable number, because it can be changed into a prime (256206323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810622 + ... + 810937.

It is an arithmetic number, because the mean of its divisors is an integer number (48646800).

Almost surely, 2^256206322 is an apocalyptic number.

256206322 is a deficient number, since it is larger than the sum of its proper divisors (132968078).

256206322 is a wasteful number, since it uses less digits than its factorization.

256206322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621640.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 256206322 is about 16006.4462639275. The cubic root of 256206322 is about 635.1309561064.

Adding to 256206322 its reverse (223602652), we get a palindrome (479808974).

The spelling of 256206322 in words is "two hundred fifty-six million, two hundred six thousand, three hundred twenty-two".