130344728 has 8 divisors (see below), whose sum is σ = 244396380. Its totient is φ = 65172360.

The previous prime is 130344719. The next prime is 130344733. The reversal of 130344728 is 827443031.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 130344694 and 130344703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8146538 + ... + 8146553.

Almost surely, 2^130344728 is an apocalyptic number.

It is an amenable number.

130344728 is a deficient number, since it is larger than the sum of its proper divisors (114051652).

130344728 is a wasteful number, since it uses less digits than its factorization.

130344728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16293097 (or 16293093 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 130344728 is about 11416.8615652464. The cubic root of 130344728 is about 507.0270815869.

Adding to 130344728 its reverse (827443031), we get a palindrome (957787759).

It can be divided in two parts, 130344 and 728, that added together give a 17-th power (131072 = 2¹⁷).

The spelling of 130344728 in words is "one hundred thirty million, three hundred forty-four thousand, seven hundred twenty-eight".