129824884 has 12 divisors (see below), whose sum is σ = 259649824. Its totient is φ = 55639224.

The previous prime is 129824881. The next prime is 129824911. The reversal of 129824884 is 488428921.

129824884 is an admirable number.

It is a super-2 number, since 2×129824884² = 33709001011226912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129824881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318274 + ... + 2318329.

Almost surely, 2^129824884 is an apocalyptic number.

129824884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129824884 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

129824884 is a wasteful number, since it uses less digits than its factorization.

129824884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636614 (or 4636612 counting only the distinct ones).

The product of its digits is 294912, while the sum is 46.

The square root of 129824884 is about 11394.0723185348. The cubic root of 129824884 is about 506.3521376199.

The spelling of 129824884 in words is "one hundred twenty-nine million, eight hundred twenty-four thousand, eight hundred eighty-four".