622256 has 10 divisors (see below), whose sum is σ = 1205652. Its totient is φ = 311120.

The previous prime is 622249. The next prime is 622277. The reversal of 622256 is 652226.

It is a happy number.

It is an Ulam number.

It is a plaindrome in base 14.

It is an unprimeable number.

622256 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19430 + ... + 19461.

2⁶²²²⁵⁶ is an apocalyptic number.

It is an amenable number.

622256 is a deficient number, since it is larger than the sum of its proper divisors (583396).

622256 is a wasteful number, since it uses less digits than its factorization.

622256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38899 (or 38893 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 622256 is about 788.8320480305. The cubic root of 622256 is about 85.3734891302.

It can be divided in two parts, 622 and 256, that added together give a palindrome (878).

The spelling of 622256 in words is "six hundred twenty-two thousand, two hundred fifty-six".