1000530 has 24 divisors (see below), whose sum is σ = 2601612. Its totient is φ = 266784.

The previous prime is 1000507. The next prime is 1000537. The reversal of 1000530 is 350001.

It can be written as a sum of positive squares in 2 ways, for example, as 915849 + 84681 = 957^2 + 291^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (1000537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5469 + ... + 5648.

2^1000530 is an apocalyptic number.

1000530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000530 is an abundant number, since it is smaller than the sum of its proper divisors (1601082).

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

1000530 is a wasteful number, since it uses less digits than its factorization.

1000530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11130 (or 11127 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 9.

The square root of 1000530 is about 1000.2649648968. The cubic root of 1000530 is about 100.0176635465.

Adding to 1000530 its reverse (350001), we get a palindrome (1350531).

The spelling of 1000530 in words is "one million, five hundred thirty", and thus it is an aban number.