3129730530 has 16 divisors (see below), whose sum is σ = 7511353344. Its totient is φ = 834594800.

The previous prime is 3129730523. The next prime is 3129730553. The reversal of 3129730530 is 350379213.

It is a super-3 number, since 3×3129730530³ (a number of 29 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3129730491 and 3129730500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52162146 + ... + 52162205.

It is an arithmetic number, because the mean of its divisors is an integer number (469459584).

Almost surely, 2^3129730530 is an apocalyptic number.

3129730530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3129730530 is an abundant number, since it is smaller than the sum of its proper divisors (4381622814).

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

3129730530 is a wasteful number, since it uses less digits than its factorization.

3129730530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104324361.

The product of its (nonzero) digits is 17010, while the sum is 33.

The square root of 3129730530 is about 55943.9945838693. The cubic root of 3129730530 is about 1462.7462120361.

The spelling of 3129730530 in words is "three billion, one hundred twenty-nine million, seven hundred thirty thousand, five hundred thirty".