129648468 has 12 divisors (see below), whose sum is σ = 302513120. Its totient is φ = 43216152.

The previous prime is 129648461. The next prime is 129648499. The reversal of 129648468 is 864846921.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129648461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5402008 + ... + 5402031.

Almost surely, 2^129648468 is an apocalyptic number.

It is an amenable number.

129648468 is an abundant number, since it is smaller than the sum of its proper divisors (172864652).

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

129648468 is a wasteful number, since it uses less digits than its factorization.

129648468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10804046 (or 10804044 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 129648468 is about 11386.3281175276. The cubic root of 129648468 is about 506.1226769579.

The spelling of 129648468 in words is "one hundred twenty-nine million, six hundred forty-eight thousand, four hundred sixty-eight".