130889730 has 64 divisors (see below), whose sum is σ = 324155520. Its totient is φ = 33808896.

The previous prime is 130889699. The next prime is 130889743. The reversal of 130889730 is 37988031.

130889730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128704 + ... + 129716.

It is an arithmetic number, because the mean of its divisors is an integer number (5064930).

Almost surely, 2^130889730 is an apocalyptic number.

130889730 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 130889730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162077760).

130889730 is an abundant number, since it is smaller than the sum of its proper divisors (193265790).

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

130889730 is a wasteful number, since it uses less digits than its factorization.

130889730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 130889730 is about 11440.7049607968. The cubic root of 130889730 is about 507.7327654945.

The spelling of 130889730 in words is "one hundred thirty million, eight hundred eighty-nine thousand, seven hundred thirty".