920530 has 32 divisors (see below), whose sum is σ = 1827504. Its totient is φ = 331776.

The previous prime is 920519. The next prime is 920539. The reversal of 920530 is 35029.

920530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 233289 + 687241 = 483^2 + 829^2 .

It is a junction number, because it is equal to n+sod(n) for n = 920498 and 920507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920539) by changing a digit.

920530 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, 9442 + ... + 9538.

2⁹²⁰⁵³⁰ is an apocalyptic number.

920530 is a deficient number, since it is larger than the sum of its proper divisors (906974).

920530 is a wasteful number, since it uses less digits than its factorization.

920530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 920530 is about 959.4425464821. The cubic root of 920530 is about 97.2775555612.

Adding to 920530 its reverse (35029), we get a palindrome (955559).

The spelling of 920530 in words is "nine hundred twenty thousand, five hundred thirty".