129986304 has 72 divisors (see below), whose sum is σ = 395391360. Its totient is φ = 37137408.

The previous prime is 129986299. The next prime is 129986321. The reversal of 129986304 is 403689921.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6714 + ... + 17465.

Almost surely, 2^129986304 is an apocalyptic number.

129986304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129986304 is an abundant number, since it is smaller than the sum of its proper divisors (265405056).

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

129986304 is an equidigital number, since it uses as much as digits as its factorization.

129986304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24205 (or 24191 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 129986304 is about 11401.1536258398. The cubic root of 129986304 is about 506.5619112453.

The spelling of 129986304 in words is "one hundred twenty-nine million, nine hundred eighty-six thousand, three hundred four".