130323240 has 96 divisors (see below), whose sum is σ = 424962720. Its totient is φ = 34637184.

The previous prime is 130323233. The next prime is 130323247. The reversal of 130323240 is 42323031.

It is an interprime number because it is at equal distance from previous prime (130323233) and next prime (130323247).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (130323247) 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, 202359 + ... + 203001.

It is an arithmetic number, because the mean of its divisors is an integer number (4426695).

Almost surely, 2^130323240 is an apocalyptic number.

130323240 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 130323240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212481360).

130323240 is an abundant number, since it is smaller than the sum of its proper divisors (294639480).

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

130323240 is a wasteful number, since it uses less digits than its factorization.

130323240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223 (or 1216 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 130323240 is about 11415.9204622317. The cubic root of 130323240 is about 506.9992180467. Note that the first 3 decimals are identical.

Adding to 130323240 its reverse (42323031), we get a palindrome (172646271).

The spelling of 130323240 in words is "one hundred thirty million, three hundred twenty-three thousand, two hundred forty".