2048391 has 24 divisors (see below), whose sum is σ = 3111680. Its totient is φ = 1297296.

The previous prime is 2048369. The next prime is 2048413. The reversal of 2048391 is 1938402.

It is an interprime number because it is at equal distance from previous prime (2048369) and next prime (2048413).

It is not a de Polignac number, because 2048391 - 2⁵ = 2048359 is a prime.

It is a Duffinian number.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 2048391 = 2³ + 127³ = 95³ + 106³.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044391) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 25890 + ... + 25968.

2^2048391 is an apocalyptic number.

2048391 is a deficient number, since it is larger than the sum of its proper divisors (1063289).

2048391 is a wasteful number, since it uses less digits than its factorization.

2048391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2048391 is about 1431.2201088582. The cubic root of 2048391 is about 127.0001653334. Note that the first 3 decimals are identical.

The spelling of 2048391 in words is "two million, forty-eight thousand, three hundred ninety-one".