130428018 has 48 divisors (see below), whose sum is σ = 329075136. Its totient is φ = 36560160.

The previous prime is 130428013. The next prime is 130428019. The reversal of 130428018 is 810824031.

It is a super-2 number, since 2×130428018² = 34022935758816648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130427982 and 130428000.

It is not an unprimeable number, because it can be changed into a prime (130428013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3088 + ... + 16443.

It is an arithmetic number, because the mean of its divisors is an integer number (6855732).

Almost surely, 2^130428018 is an apocalyptic number.

130428018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

130428018 is an abundant number, since it is smaller than the sum of its proper divisors (198647118).

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

130428018 is a wasteful number, since it uses less digits than its factorization.

130428018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19599 (or 19596 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 130428018 is about 11420.5086576737. The cubic root of 130428018 is about 507.1350549956.

The spelling of 130428018 in words is "one hundred thirty million, four hundred twenty-eight thousand, eighteen".