2112929280 has 640 divisors, whose sum is σ = 9380828160. Its totient is φ = 437944320.

The previous prime is 2112929263. The next prime is 2112929311. The reversal of 2112929280 is 829292112.

It is a tau number, because it is divible by the number of its divisors (640).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5322042 + ... + 5322438.

It is an arithmetic number, because the mean of its divisors is an integer number (14657544).

Almost surely, 2^2112929280 is an apocalyptic number.

2112929280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112929280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4690414080).

2112929280 is an abundant number, since it is smaller than the sum of its proper divisors (7267898880).

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

2112929280 is a wasteful number, since it uses less digits than its factorization.

2112929280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 2112929280 is about 45966.6104906594. The cubic root of 2112929280 is about 1283.2018797534.

The spelling of 2112929280 in words is "two billion, one hundred twelve million, nine hundred twenty-nine thousand, two hundred eighty".