622626 has 16 divisors (see below), whose sum is σ = 1276128. Its totient is φ = 202400.

The previous prime is 622621. The next prime is 622637. The reversal of 622626 is 626226.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 622596 and 622605.

It is not an unprimeable number, because it can be changed into a prime (622621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020 + ... + 1511.

It is an arithmetic number, because the mean of its divisors is an integer number (79758).

2⁶²²⁶²⁶ is an apocalyptic number.

622626 is an abundant number, since it is smaller than the sum of its proper divisors (653502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622626 is a wasteful number, since it uses less digits than its factorization.

622626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577.

The product of its digits is 1728, while the sum is 24.

The square root of 622626 is about 789.0665371184. The cubic root of 622626 is about 85.3904071040.

Subtracting 622626 from its reverse (626226), we obtain a square (3600 = 60²).

The spelling of 622626 in words is "six hundred twenty-two thousand, six hundred twenty-six".