129830652 has 72 divisors (see below), whose sum is σ = 378854112. Its totient is φ = 36720000.

The previous prime is 129830647. The next prime is 129830677. The reversal of 129830652 is 256038921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22902 + ... + 28002.

Almost surely, 2^129830652 is an apocalyptic number.

129830652 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 129830652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189427056).

129830652 is an abundant number, since it is smaller than the sum of its proper divisors (249023460).

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

129830652 is a wasteful number, since it uses less digits than its factorization.

129830652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5219 (or 5214 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 129830652 is about 11394.3254297918. The cubic root of 129830652 is about 506.3596364285.

The spelling of 129830652 in words is "one hundred twenty-nine million, eight hundred thirty thousand, six hundred fifty-two".