2112920908 has 24 divisors (see below), whose sum is σ = 4315756032. Its totient is φ = 886270224.

The previous prime is 2112920903. The next prime is 2112920933. The reversal of 2112920908 is 8090292112.

It is not an unprimeable number, because it can be changed into a prime (2112920903) 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, 801466 + ... + 804097.

It is an arithmetic number, because the mean of its divisors is an integer number (179823168).

Almost surely, 2^2112920908 is an apocalyptic number.

2112920908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2112920908 is an abundant number, since it is smaller than the sum of its proper divisors (2202835124).

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

2112920908 is a wasteful number, since it uses less digits than its factorization.

2112920908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605621 (or 1605619 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 2112920908 is about 45966.5194244681. The cubic root of 2112920908 is about 1283.2001849530.

The spelling of 2112920908 in words is "two billion, one hundred twelve million, nine hundred twenty thousand, nine hundred eight".