256680622 has 8 divisors (see below), whose sum is σ = 420022872. Its totient is φ = 116673000.

The previous prime is 256680577. The next prime is 256680647. The reversal of 256680622 is 226086652.

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, 5833629 + ... + 5833672.

It is an arithmetic number, because the mean of its divisors is an integer number (52502859).

Almost surely, 2^256680622 is an apocalyptic number.

256680622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256680622 is a deficient number, since it is larger than the sum of its proper divisors (163342250).

256680622 is a wasteful number, since it uses less digits than its factorization.

256680622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11667314.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 256680622 is about 16021.2553191066. The cubic root of 256680622 is about 635.5226416173.

The spelling of 256680622 in words is "two hundred fifty-six million, six hundred eighty thousand, six hundred twenty-two".