80129280 has 288 divisors, whose sum is σ = 320237568. Its totient is φ = 16588800.

The previous prime is 80129239. The next prime is 80129297. The reversal of 80129280 is 8292108.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295545 + ... + 295815.

It is an arithmetic number, because the mean of its divisors is an integer number (1111936).

Almost surely, 2^80129280 is an apocalyptic number.

80129280 is a gapful number since it is divisible by the number (80) 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 80129280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160118784).

80129280 is an abundant number, since it is smaller than the sum of its proper divisors (240108288).

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

80129280 is a wasteful number, since it uses less digits than its factorization.

80129280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 80129280 is about 8951.4959643626. The cubic root of 80129280 is about 431.1189175222.

The spelling of 80129280 in words is "eighty million, one hundred twenty-nine thousand, two hundred eighty".