129448704 has 216 divisors, whose sum is σ = 434963200. Its totient is φ = 33454080.

The previous prime is 129448703. The next prime is 129448717. The reversal of 129448704 is 407844921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129448703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 650397 + ... + 650595.

Almost surely, 2^129448704 is an apocalyptic number.

129448704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129448704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217481600).

129448704 is an abundant number, since it is smaller than the sum of its proper divisors (305514496).

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

129448704 is a wasteful number, since it uses less digits than its factorization.

129448704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 129448704 is about 11377.5526366614. The cubic root of 129448704 is about 505.8625965922.

The spelling of 129448704 in words is "one hundred twenty-nine million, four hundred forty-eight thousand, seven hundred four".