2021912 has 16 divisors (see below), whose sum is σ = 4014360. Its totient is φ = 951424.

The previous prime is 2021891. The next prime is 2021927. The reversal of 2021912 is 2191202.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7298 + ... + 7569.

2^2021912 is an apocalyptic number.

It is an amenable number.

2021912 is a deficient number, since it is larger than the sum of its proper divisors (1992448).

2021912 is a wasteful number, since it uses less digits than its factorization.

2021912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14890 (or 14886 counting only the distinct ones).

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

The square root of 2021912 is about 1421.9395205141. The cubic root of 2021912 is about 126.4505579408.

The spelling of 2021912 in words is "two million, twenty-one thousand, nine hundred twelve".