2112730772 has 24 divisors (see below), whose sum is σ = 3742338600. Its totient is φ = 1043513856.

The previous prime is 2112730771. The next prime is 2112730787. The reversal of 2112730772 is 2770372112.

It can be written as a sum of positive squares in 4 ways, for example, as 279692176 + 1833038596 = 16724^2 + 42814^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112730771) 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, 506648 + ... + 510800.

It is an arithmetic number, because the mean of its divisors is an integer number (155930775).

Almost surely, 2^2112730772 is an apocalyptic number.

It is an amenable number.

2112730772 is a deficient number, since it is larger than the sum of its proper divisors (1629607828).

2112730772 is a wasteful number, since it uses less digits than its factorization.

2112730772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5675 (or 5673 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 2112730772 is about 45964.4511769694. The cubic root of 2112730772 is about 1283.1616932347.

The spelling of 2112730772 in words is "two billion, one hundred twelve million, seven hundred thirty thousand, seven hundred seventy-two".