130304928 has 96 divisors (see below), whose sum is σ = 370694016. Its totient is φ = 39840768.

The previous prime is 130304887. The next prime is 130304953. The reversal of 130304928 is 829403031.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×130304928² = 33958748522170368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130304895 and 130304904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328026 + ... + 328422.

It is an arithmetic number, because the mean of its divisors is an integer number (3861396).

Almost surely, 2^130304928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130304928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185347008).

130304928 is an abundant number, since it is smaller than the sum of its proper divisors (240389088).

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

130304928 is a wasteful number, since it uses less digits than its factorization.

130304928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 130304928 is about 11415.1183962323. The cubic root of 130304928 is about 506.9754704159.

Adding to 130304928 its reverse (829403031), we get a palindrome (959707959).

The spelling of 130304928 in words is "one hundred thirty million, three hundred four thousand, nine hundred twenty-eight".