1005604530 has 32 divisors (see below), whose sum is σ = 2758230144. Its totient is φ = 229852416.

The previous prime is 1005604517. The next prime is 1005604531. The reversal of 1005604530 is 354065001.

It is a super-2 number, since 2×1005604530² = 2022480941513041800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1005604530.

It is not an unprimeable number, because it can be changed into a prime (1005604531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2394087 + ... + 2394506.

It is an arithmetic number, because the mean of its divisors is an integer number (86194692).

Almost surely, 2^1005604530 is an apocalyptic number.

1005604530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005604530 is an abundant number, since it is smaller than the sum of its proper divisors (1752625614).

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

1005604530 is a wasteful number, since it uses less digits than its factorization.

1005604530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4788610.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1005604530 is about 31711.2681865611. The cubic root of 1005604530 is about 1001.8646974090.

Adding to 1005604530 its reverse (354065001), we get a palindrome (1359669531).

The spelling of 1005604530 in words is "one billion, five million, six hundred four thousand, five hundred thirty".