130732220 has 12 divisors (see below), whose sum is σ = 274537704. Its totient is φ = 52292880.

The previous prime is 130732219. The next prime is 130732223. The reversal of 130732220 is 22237031.

It is a super-2 number, since 2×130732220² = 34181826692256800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6536611 = 130732220 / (1 + 3 + 0 + 7 + 3 + 2 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 130732192 and 130732201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130732223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3268286 + ... + 3268325.

It is an arithmetic number, because the mean of its divisors is an integer number (22878142).

Almost surely, 2^130732220 is an apocalyptic number.

130732220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130732220 is an abundant number, since it is smaller than the sum of its proper divisors (143805484).

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

130732220 is a wasteful number, since it uses less digits than its factorization.

130732220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536620 (or 6536618 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 130732220 is about 11433.8191344800. The cubic root of 130732220 is about 507.5290187003.

Adding to 130732220 its reverse (22237031), we get a palindrome (152969251).

The spelling of 130732220 in words is "one hundred thirty million, seven hundred thirty-two thousand, two hundred twenty".