129082448 has 40 divisors (see below), whose sum is σ = 273836640. Its totient is φ = 58458240.

The previous prime is 129082441. The next prime is 129082493. The reversal of 129082448 is 844280921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129082441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52838 + ... + 55226.

It is an arithmetic number, because the mean of its divisors is an integer number (6845916).

Almost surely, 2^129082448 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 129082448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136918320).

129082448 is an abundant number, since it is smaller than the sum of its proper divisors (144754192).

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

129082448 is a wasteful number, since it uses less digits than its factorization.

129082448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715 (or 2709 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 129082448 is about 11361.4456826585. The cubic root of 129082448 is about 505.3850580849.

It can be divided in two parts, 1290 and 82448, that added together give a palindrome (83738).

The spelling of 129082448 in words is "one hundred twenty-nine million, eighty-two thousand, four hundred forty-eight".