2091938 has 8 divisors (see below), whose sum is σ = 3303120. Its totient is φ = 990900.

The previous prime is 2091931. The next prime is 2091953. The reversal of 2091938 is 8391902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2091931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27488 + ... + 27563.

It is an arithmetic number, because the mean of its divisors is an integer number (412890).

2^2091938 is an apocalyptic number.

2091938 is a deficient number, since it is larger than the sum of its proper divisors (1211182).

2091938 is a wasteful number, since it uses less digits than its factorization.

2091938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55072.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 2091938 is about 1446.3533454865. The cubic root of 2091938 is about 127.8938328645.

The spelling of 2091938 in words is "two million, ninety-one thousand, nine hundred thirty-eight".