622530 has 24 divisors (see below), whose sum is σ = 1618812. Its totient is φ = 165984.

The previous prime is 622529. The next prime is 622547. The reversal of 622530 is 35226.

It can be written as a sum of positive squares in 2 ways, for example, as 622521 + 9 = 789^2 + 3^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3369 + ... + 3548.

2⁶²²⁵³⁰ is an apocalyptic number.

622530 is an abundant number, since it is smaller than the sum of its proper divisors (996282).

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

622530 is a wasteful number, since it uses less digits than its factorization.

622530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6930 (or 6927 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 622530 is about 789.0057034014. The cubic root of 622530 is about 85.3860182197.

Subtracting from 622530 its product of nonzero digits (360), we obtain a triangular number (622170 = T₁₁₁₅).

Adding to 622530 its reverse (35226), we get a palindrome (657756).

The spelling of 622530 in words is "six hundred twenty-two thousand, five hundred thirty".