2091546 has 24 divisors (see below), whose sum is σ = 4571424. Its totient is φ = 691080.

The previous prime is 2091521. The next prime is 2091553. The reversal of 2091546 is 6451902.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1915 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (190476).

2^2091546 is an apocalyptic number.

2091546 is an abundant number, since it is smaller than the sum of its proper divisors (2479878).

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

2091546 is a wasteful number, since it uses less digits than its factorization.

2091546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2091546 is about 1446.2178259170. The cubic root of 2091546 is about 127.8858438587.

The spelling of 2091546 in words is "two million, ninety-one thousand, five hundred forty-six".