129852380 has 24 divisors (see below), whose sum is σ = 311646048. Its totient is φ = 44520768.

The previous prime is 129852377. The next prime is 129852383. The reversal of 129852380 is 83258921.

It is an interprime number because it is at equal distance from previous prime (129852377) and next prime (129852383).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129852383) 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, 463619 + ... + 463898.

It is an arithmetic number, because the mean of its divisors is an integer number (12985252).

Almost surely, 2^129852380 is an apocalyptic number.

129852380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129852380 is an abundant number, since it is smaller than the sum of its proper divisors (181793668).

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

129852380 is a wasteful number, since it uses less digits than its factorization.

129852380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927533 (or 927531 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 129852380 is about 11395.2788469611. The cubic root of 129852380 is about 506.3878823738.

The spelling of 129852380 in words is "one hundred twenty-nine million, eight hundred fifty-two thousand, three hundred eighty".