129842088 has 32 divisors (see below), whose sum is σ = 325793760. Its totient is φ = 43122240.

The previous prime is 129842087. The next prime is 129842093. The reversal of 129842088 is 880248921.

It is not an unprimeable number, because it can be changed into a prime (129842087) 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 7 ways as a sum of consecutive naturals, for example, 3118 + ... + 16413.

It is an arithmetic number, because the mean of its divisors is an integer number (10181055).

Almost surely, 2^129842088 is an apocalyptic number.

It is an amenable number.

129842088 is an abundant number, since it is smaller than the sum of its proper divisors (195951672).

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

129842088 is a wasteful number, since it uses less digits than its factorization.

129842088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19817 (or 19813 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 129842088 is about 11394.8272474838. The cubic root of 129842088 is about 506.3745033820.

The spelling of 129842088 in words is "one hundred twenty-nine million, eight hundred forty-two thousand, eighty-eight".