130344540 has 96 divisors (see below), whose sum is σ = 373633344. Its totient is φ = 33945600.

The previous prime is 130344521. The next prime is 130344563. The reversal of 130344540 is 45443031.

It is a self number, because there is not a number n which added to its sum of digits gives 130344540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 830142 + ... + 830298.

It is an arithmetic number, because the mean of its divisors is an integer number (3892014).

Almost surely, 2^130344540 is an apocalyptic number.

130344540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130344540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186816672).

130344540 is an abundant number, since it is smaller than the sum of its proper divisors (243288804).

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

130344540 is a wasteful number, since it uses less digits than its factorization.

130344540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 130344540 is about 11416.8533318073. The cubic root of 130344540 is about 507.0268378201.

Adding to 130344540 its reverse (45443031), we get a palindrome (175787571).

The spelling of 130344540 in words is "one hundred thirty million, three hundred forty-four thousand, five hundred forty".