130232240 has 80 divisors (see below), whose sum is σ = 331050240. Its totient is φ = 47431680.

The previous prime is 130232227. The next prime is 130232261. The reversal of 130232240 is 42232031.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40616 + ... + 43704.

It is an arithmetic number, because the mean of its divisors is an integer number (4138128).

Almost surely, 2^130232240 is an apocalyptic number.

130232240 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 130232240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165525120).

130232240 is an abundant number, since it is smaller than the sum of its proper divisors (200818000).

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

130232240 is a wasteful number, since it uses less digits than its factorization.

130232240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150 (or 3144 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 130232240 is about 11411.9341042612. The cubic root of 130232240 is about 506.8811841704.

Adding to 130232240 its reverse (42232031), we get a palindrome (172464271).

The spelling of 130232240 in words is "one hundred thirty million, two hundred thirty-two thousand, two hundred forty".