2091846 has 16 divisors (see below), whose sum is σ = 4198464. Its totient is φ = 694824.

The previous prime is 2091839. The next prime is 2091847. The reversal of 2091846 is 6481902.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091847) 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, 2265 + ... + 3051.

It is an arithmetic number, because the mean of its divisors is an integer number (262404).

2^2091846 is an apocalyptic number.

2091846 is an abundant number, since it is smaller than the sum of its proper divisors (2106618).

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

2091846 is a wasteful number, since it uses less digits than its factorization.

2091846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2091846 is about 1446.3215410136. The cubic root of 2091846 is about 127.8919579834.

The spelling of 2091846 in words is "two million, ninety-one thousand, eight hundred forty-six".