622830 has 32 divisors (see below), whose sum is σ = 1610784. Its totient is φ = 153216.

The previous prime is 622813. The next prime is 622849. The reversal of 622830 is 38226.

622830 = T₃₉ + T₄₀ + ... + T₁₅₅.

It is a junction number, because it is equal to n+sod(n) for n = 622797 and 622806.

It is a congruent number.

It is an unprimeable number.

622830 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409 + ... + 1188.

It is an arithmetic number, because the mean of its divisors is an integer number (50337).

2⁶²²⁸³⁰ is an apocalyptic number.

622830 is an abundant number, since it is smaller than the sum of its proper divisors (987954).

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

622830 is a wasteful number, since it uses less digits than its factorization.

622830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 622830 is about 789.1957931971. The cubic root of 622830 is about 85.3997319855.

The spelling of 622830 in words is "six hundred twenty-two thousand, eight hundred thirty".