130642032 has 80 divisors (see below), whose sum is σ = 348325920. Its totient is φ = 42172416.

The previous prime is 130642021. The next prime is 130642073. The reversal of 130642032 is 230246031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226128 + ... + 226704.

It is an arithmetic number, because the mean of its divisors is an integer number (4354074).

Almost surely, 2^130642032 is an apocalyptic number.

130642032 is a gapful number since it is divisible by the number (12) 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 130642032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174162960).

130642032 is an abundant number, since it is smaller than the sum of its proper divisors (217683888).

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

130642032 is a wasteful number, since it uses less digits than its factorization.

130642032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 130642032 is about 11429.8745399939. The cubic root of 130642032 is about 507.4122824768.

Adding to 130642032 its reverse (230246031), we get a palindrome (360888063).

The spelling of 130642032 in words is "one hundred thirty million, six hundred forty-two thousand, thirty-two".