3129999360 has 168 divisors, whose sum is σ = 10066324800. Its totient is φ = 830472192.

The previous prime is 3129999331. The next prime is 3129999373. The reversal of 3129999360 is 639999213.

It is a happy number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15728541 + ... + 15728739.

It is an arithmetic number, because the mean of its divisors is an integer number (59918600).

Almost surely, 2^3129999360 is an apocalyptic number.

3129999360 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 3129999360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5033162400).

3129999360 is an abundant number, since it is smaller than the sum of its proper divisors (6936325440).

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

3129999360 is an frugal number, since it uses more digits than its factorization.

3129999360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 708588, while the sum is 51.

The square root of 3129999360 is about 55946.3972030371. The cubic root of 3129999360 is about 1462.7880919788.

The spelling of 3129999360 in words is "three billion, one hundred twenty-nine million, nine hundred ninety-nine thousand, three hundred sixty".