2091392 has 16 divisors (see below), whose sum is σ = 4166700. Its totient is φ = 1045632.

The previous prime is 2091389. The next prime is 2091409. The reversal of 2091392 is 2931902.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8042 + ... + 8297.

2^2091392 is an apocalyptic number.

It is an amenable number.

2091392 is a deficient number, since it is larger than the sum of its proper divisors (2075308).

2091392 is an equidigital number, since it uses as much as digits as its factorization.

2091392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16353 (or 16341 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2091392 is about 1446.1645826115. The cubic root of 2091392 is about 127.8827050476.

The spelling of 2091392 in words is "two million, ninety-one thousand, three hundred ninety-two".