2129360520 has 64 divisors (see below), whose sum is σ = 7300667520. Its totient is φ = 486710784.

The previous prime is 2129360507. The next prime is 2129360531. The reversal of 2129360520 is 250639212.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1266637 + ... + 1268316.

It is an arithmetic number, because the mean of its divisors is an integer number (114072930).

Almost surely, 2^2129360520 is an apocalyptic number.

2129360520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2129360520 is an abundant number, since it is smaller than the sum of its proper divisors (5171307000).

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

2129360520 is a wasteful number, since it uses less digits than its factorization.

2129360520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534974 (or 2534970 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 2129360520 is about 46144.9945281176. The cubic root of 2129360520 is about 1286.5195768510.

Adding to 2129360520 its reverse (250639212), we get a palindrome (2379999732).

The spelling of 2129360520 in words is "two billion, one hundred twenty-nine million, three hundred sixty thousand, five hundred twenty".