129084080 has 40 divisors (see below), whose sum is σ = 301199472. Its totient is φ = 51448064.

The previous prime is 129084061. The next prime is 129084089. The reversal of 129084080 is 80480921.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (129084089) 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, 20687 + ... + 26193.

Almost surely, 2^129084080 is an apocalyptic number.

129084080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129084080 is an abundant number, since it is smaller than the sum of its proper divisors (172115392).

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

129084080 is a wasteful number, since it uses less digits than its factorization.

129084080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813 (or 5807 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 129084080 is about 11361.5175042773. The cubic root of 129084080 is about 505.3871879508.

The spelling of 129084080 in words is "one hundred twenty-nine million, eighty-four thousand, eighty".