1230008520 has 64 divisors (see below), whose sum is σ = 3973878720. Its totient is φ = 302770944.

The previous prime is 1230008509. The next prime is 1230008537. The reversal of 1230008520 is 258000321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392674 + ... + 395793.

It is an arithmetic number, because the mean of its divisors is an integer number (62091855).

Almost surely, 2^1230008520 is an apocalyptic number.

1230008520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230008520 is an abundant number, since it is smaller than the sum of its proper divisors (2743870200).

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

1230008520 is a wasteful number, since it uses less digits than its factorization.

1230008520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788494 (or 788490 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1230008520 is about 35071.4772999371. The cubic root of 1230008520 is about 1071.4437435820.

Adding to 1230008520 its reverse (258000321), we get a palindrome (1488008841).

The spelling of 1230008520 in words is "one billion, two hundred thirty million, eight thousand, five hundred twenty".