130938228 has 48 divisors (see below), whose sum is σ = 345240000. Its totient is φ = 42904224.

The previous prime is 130938211. The next prime is 130938239. The reversal of 130938228 is 822839031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 130938192 and 130938201.

It is a congruent number.

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, 3903 + ... + 16646.

It is an arithmetic number, because the mean of its divisors is an integer number (7192500).

Almost surely, 2^130938228 is an apocalyptic number.

130938228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

130938228 is an abundant number, since it is smaller than the sum of its proper divisors (214301772).

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

130938228 is a wasteful number, since it uses less digits than its factorization.

130938228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20621 (or 20613 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 130938228 is about 11442.8243017185. The cubic root of 130938228 is about 507.7954670857.

It can be divided in two parts, 13093 and 8228, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 130938228 in words is "one hundred thirty million, nine hundred thirty-eight thousand, two hundred twenty-eight".