2091954 has 16 divisors (see below), whose sum is σ = 4213440. Its totient is φ = 692400.

The previous prime is 2091953. The next prime is 2091959. The reversal of 2091954 is 4591902.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2091953) 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, 249 + ... + 2060.

It is an arithmetic number, because the mean of its divisors is an integer number (263340).

2^2091954 is an apocalyptic number.

2091954 is an abundant number, since it is smaller than the sum of its proper divisors (2121486).

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

2091954 is a wasteful number, since it uses less digits than its factorization.

2091954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2091954 is about 1446.3588766278. The cubic root of 2091954 is about 127.8941589252.

The spelling of 2091954 in words is "two million, ninety-one thousand, nine hundred fifty-four".