622780 has 12 divisors (see below), whose sum is σ = 1307880. Its totient is φ = 249104.

The previous prime is 622777. The next prime is 622781. The reversal of 622780 is 87226.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622781) 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, 15550 + ... + 15589.

It is an arithmetic number, because the mean of its divisors is an integer number (108990).

2⁶²²⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

622780 is an abundant number, since it is smaller than the sum of its proper divisors (685100).

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

622780 is a wasteful number, since it uses less digits than its factorization.

622780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31148 (or 31146 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 622780 is about 789.1641147442. The cubic root of 622780 is about 85.3974466637.

The spelling of 622780 in words is "six hundred twenty-two thousand, seven hundred eighty".