1230530 has 16 divisors (see below), whose sum is σ = 2531520. Its totient is φ = 421872.
The previous prime is 1230529. The next prime is 1230539. The reversal of 1230530 is 350321.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is not an unprimeable number, because it can be changed into a prime (1230539) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8720 + ... + 8859.
It is an arithmetic number, because the mean of its divisors is an integer number (158220).
21230530 is an apocalyptic number.
1230530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1230530 is an abundant number, since it is smaller than the sum of its proper divisors (1300990).
1230530 is a wasteful number, since it uses less digits than its factorization.
1230530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17593.
The product of its (nonzero) digits is 90, while the sum is 14.
The square root of 1230530 is about 1109.2925673599. The cubic root of 1230530 is about 107.1595140241.
Adding to 1230530 its reverse (350321), we get a palindrome (1580851).
The spelling of 1230530 in words is "one million, two hundred thirty thousand, five hundred thirty".
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