2112730928 has 80 divisors (see below), whose sum is σ = 5154312960. Its totient is φ = 814944000.

The previous prime is 2112730909. The next prime is 2112730931. The reversal of 2112730928 is 8290372112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115943 + ... + 132921.

It is an arithmetic number, because the mean of its divisors is an integer number (64428912).

Almost surely, 2^2112730928 is an apocalyptic number.

2112730928 is a gapful number since it is divisible by the number (28) 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 2112730928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2577156480).

2112730928 is an abundant number, since it is smaller than the sum of its proper divisors (3041582032).

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

2112730928 is a wasteful number, since it uses less digits than its factorization.

2112730928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17106 (or 17100 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 2112730928 is about 45964.4528739329. The cubic root of 2112730928 is about 1283.1617248167.

The spelling of 2112730928 in words is "two billion, one hundred twelve million, seven hundred thirty thousand, nine hundred twenty-eight".