129943932 has 24 divisors (see below), whose sum is σ = 303660672. Its totient is φ = 43249200.

The previous prime is 129943921. The next prime is 129943939. The reversal of 129943932 is 239349921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129943939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457 + ... + 16127.

It is an arithmetic number, because the mean of its divisors is an integer number (12652528).

Almost surely, 2^129943932 is an apocalyptic number.

129943932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129943932 is an abundant number, since it is smaller than the sum of its proper divisors (173716740).

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

129943932 is a wasteful number, since it uses less digits than its factorization.

129943932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16369 (or 16367 counting only the distinct ones).

The product of its digits is 104976, while the sum is 42.

The square root of 129943932 is about 11399.2952413735. The cubic root of 129943932 is about 506.5068634613.

The spelling of 129943932 in words is "one hundred twenty-nine million, nine hundred forty-three thousand, nine hundred thirty-two".