3860129280 has 320 divisors, whose sum is σ = 14354081280. Its totient is φ = 866648064.

The previous prime is 3860129279. The next prime is 3860129297. The reversal of 3860129280 is 829210683.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

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, 3171232 + ... + 3172448.

It is an arithmetic number, because the mean of its divisors is an integer number (44856504).

Almost surely, 2^3860129280 is an apocalyptic number.

3860129280 is a gapful number since it is divisible by the number (30) 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 3860129280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7177040640).

3860129280 is an abundant number, since it is smaller than the sum of its proper divisors (10493952000).

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

3860129280 is a wasteful number, since it uses less digits than its factorization.

3860129280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 3860129280 is about 62129.9386769374. The cubic root of 3860129280 is about 1568.6785207242.

The spelling of 3860129280 in words is "three billion, eight hundred sixty million, one hundred twenty-nine thousand, two hundred eighty".