130030240 has 24 divisors (see below), whose sum is σ = 307196820. Its totient is φ = 52012032.

The previous prime is 130030217. The next prime is 130030259. The reversal of 130030240 is 42030031.

It can be written as a sum of positive squares in 2 ways, for example, as 124813584 + 5216656 = 11172^2 + 2284^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 130030240.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406185 + ... + 406504.

Almost surely, 2^130030240 is an apocalyptic number.

130030240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130030240 is an abundant number, since it is smaller than the sum of its proper divisors (177166580).

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

130030240 is an equidigital number, since it uses as much as digits as its factorization.

130030240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812704 (or 812696 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 130030240 is about 11403.0802856070. The cubic root of 130030240 is about 506.6189782755.

Adding to 130030240 its reverse (42030031), we get a palindrome (172060271).

The spelling of 130030240 in words is "one hundred thirty million, thirty thousand, two hundred forty".