2120685192 has 256 divisors, whose sum is σ = 6435072000. Its totient is φ = 645283584.

The previous prime is 2120685187. The next prime is 2120685199. The reversal of 2120685192 is 2915860212.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2120685199) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15256659 + ... + 15256797.

It is an arithmetic number, because the mean of its divisors is an integer number (25137000).

Almost surely, 2^2120685192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120685192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3217536000).

2120685192 is an abundant number, since it is smaller than the sum of its proper divisors (4314386808).

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

2120685192 is a wasteful number, since it uses less digits than its factorization.

2120685192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 2120685192 is about 46050.8978414102. The cubic root of 2120685192 is about 1284.7700420712.

The spelling of 2120685192 in words is "two billion, one hundred twenty million, six hundred eighty-five thousand, one hundred ninety-two".