2130861936 has 160 divisors (see below), whose sum is σ = 6536724480. Its totient is φ = 585508608.

The previous prime is 2130861917. The next prime is 2130861937. The reversal of 2130861936 is 6391680312.

It is a junction number, because it is equal to n+sod(n) for n = 2130861894 and 2130861903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130861937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 930585 + ... + 932871.

It is an arithmetic number, because the mean of its divisors is an integer number (40854528).

Almost surely, 2^2130861936 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 2130861936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3268362240).

2130861936 is an abundant number, since it is smaller than the sum of its proper divisors (4405862544).

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

2130861936 is a wasteful number, since it uses less digits than its factorization.

2130861936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 2130861936 is about 46161.2601214482. The cubic root of 2130861936 is about 1286.8218815797.

The spelling of 2130861936 in words is "two billion, one hundred thirty million, eight hundred sixty-one thousand, nine hundred thirty-six".