130939830 has 96 divisors (see below), whose sum is σ = 409593600. Its totient is φ = 28351296.

The previous prime is 130939829. The next prime is 130939873. The reversal of 130939830 is 38939031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6501 + ... + 17439.

It is an arithmetic number, because the mean of its divisors is an integer number (4266600).

Almost surely, 2^130939830 is an apocalyptic number.

130939830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 130939830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204796800).

130939830 is an abundant number, since it is smaller than the sum of its proper divisors (278653770).

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

130939830 is a wasteful number, since it uses less digits than its factorization.

130939830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10978 (or 10975 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 130939830 is about 11442.8943017053. The cubic root of 130939830 is about 507.7975379986.

It can be divided in two parts, 130939 and 830, that added together give a square (131769 = 363²).

The spelling of 130939830 in words is "one hundred thirty million, nine hundred thirty-nine thousand, eight hundred thirty".