2091912 has 32 divisors (see below), whose sum is σ = 5287680. Its totient is φ = 689600.

The previous prime is 2091889. The next prime is 2091913. The reversal of 2091912 is 2191902.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2091913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1993 + ... + 2855.

It is an arithmetic number, because the mean of its divisors is an integer number (165240).

2^2091912 is an apocalyptic number.

It is an amenable number.

2091912 is an abundant number, since it is smaller than the sum of its proper divisors (3195768).

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

2091912 is a wasteful number, since it uses less digits than its factorization.

2091912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 2091912 is about 1446.3443573368. The cubic root of 2091912 is about 127.8933030124.

It can be divided in two parts, 2091 and 912, that added together give a palindrome (3003).

The spelling of 2091912 in words is "two million, ninety-one thousand, nine hundred twelve".