130788720 has 120 divisors (see below), whose sum is σ = 441314016. Its totient is φ = 34712064.

The previous prime is 130788719. The next prime is 130788727. The reversal of 130788720 is 27887031.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130788727) 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, 268317 + ... + 268803.

Almost surely, 2^130788720 is an apocalyptic number.

130788720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130788720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220657008).

130788720 is an abundant number, since it is smaller than the sum of its proper divisors (310525296).

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

130788720 is a wasteful number, since it uses less digits than its factorization.

130788720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 130788720 is about 11436.2896080853. The cubic root of 130788720 is about 507.6021229934.

The spelling of 130788720 in words is "one hundred thirty million, seven hundred eighty-eight thousand, seven hundred twenty".