2129829916 has 24 divisors (see below), whose sum is σ = 3771614000. Its totient is φ = 1052279424.

The previous prime is 2129829907. The next prime is 2129829917. The reversal of 2129829916 is 6199289212.

It is a self number, because there is not a number n which added to its sum of digits gives 2129829916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129829917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158800 + ... + 171688.

Almost surely, 2^2129829916 is an apocalyptic number.

It is an amenable number.

2129829916 is a deficient number, since it is larger than the sum of its proper divisors (1641784084).

2129829916 is a wasteful number, since it uses less digits than its factorization.

2129829916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13381 (or 13379 counting only the distinct ones).

The product of its digits is 279936, while the sum is 49.

The square root of 2129829916 is about 46150.0803466256. The cubic root of 2129829916 is about 1286.6141033171.

The spelling of 2129829916 in words is "two billion, one hundred twenty-nine million, eight hundred twenty-nine thousand, nine hundred sixteen".