2021938 has 16 divisors (see below), whose sum is σ = 3188160. Its totient is φ = 960400.

The previous prime is 2021933. The next prime is 2021959. The reversal of 2021938 is 8391202.

It is not an unprimeable number, because it can be changed into a prime (2021933) 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, 3873 + ... + 4363.

It is an arithmetic number, because the mean of its divisors is an integer number (199260).

2^2021938 is an apocalyptic number.

2021938 is a deficient number, since it is larger than the sum of its proper divisors (1166222).

2021938 is a wasteful number, since it uses less digits than its factorization.

2021938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2021938 is about 1421.9486629270. The cubic root of 2021938 is about 126.4510999526.

The spelling of 2021938 in words is "two million, twenty-one thousand, nine hundred thirty-eight".