2112920 has 32 divisors (see below), whose sum is σ = 4810320. Its totient is φ = 835200.

The previous prime is 2112919. The next prime is 2112923. The reversal of 2112920 is 292112.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112923) 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, 3779 + ... + 4301.

2^2112920 is an apocalyptic number.

2112920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112920 is an abundant number, since it is smaller than the sum of its proper divisors (2697400).

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

2112920 is a wasteful number, since it uses less digits than its factorization.

2112920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2112920 is about 1453.5886625865. The cubic root of 2112920 is about 128.3200001140.

The spelling of 2112920 in words is "two million, one hundred twelve thousand, nine hundred twenty".