130403232 has 72 divisors (see below), whose sum is σ = 390368160. Its totient is φ = 41178240.

The previous prime is 130403191. The next prime is 130403237. The reversal of 130403232 is 232304031.

130403232 is a `hidden beast` number, since 1 + 30 + 403 + 232 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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 (130403237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6444 + ... + 17387.

It is an arithmetic number, because the mean of its divisors is an integer number (5421780).

Almost surely, 2^130403232 is an apocalyptic number.

130403232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130403232 is an abundant number, since it is smaller than the sum of its proper divisors (259964928).

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

130403232 is a wasteful number, since it uses less digits than its factorization.

130403232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23866 (or 23855 counting only the distinct ones).

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

The square root of 130403232 is about 11419.4234530470. The cubic root of 130403232 is about 507.1029283458.

Adding to 130403232 its reverse (232304031), we get a palindrome (362707263).

The spelling of 130403232 in words is "one hundred thirty million, four hundred three thousand, two hundred thirty-two".