129469824 has 192 divisors, whose sum is σ = 431056080. Its totient is φ = 36864000.

The previous prime is 129469817. The next prime is 129469853. The reversal of 129469824 is 428964921.

It is a tau number, because it is divible by the number of its divisors (192).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 129469824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215124 + ... + 215724.

Almost surely, 2^129469824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129469824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215528040).

129469824 is an abundant number, since it is smaller than the sum of its proper divisors (301586256).

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

129469824 is a wasteful number, since it uses less digits than its factorization.

129469824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 634 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 129469824 is about 11378.4807421729. The cubic root of 129469824 is about 505.8901061686.

The spelling of 129469824 in words is "one hundred twenty-nine million, four hundred sixty-nine thousand, eight hundred twenty-four".