2444391 has 8 divisors (see below), whose sum is σ = 3621360. Its totient is φ = 1629576.

The previous prime is 2444383. The next prime is 2444401. The reversal of 2444391 is 1934442.

2444391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2444391 - 2³ = 2444383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 90533 = 2444391 / (2 + 4 + 4 + 4 + 3 + 9 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2444341) 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 7 ways as a sum of consecutive naturals, for example, 45240 + ... + 45293.

It is an arithmetic number, because the mean of its divisors is an integer number (452670).

2^2444391 is an apocalyptic number.

2444391 is a deficient number, since it is larger than the sum of its proper divisors (1176969).

2444391 is an equidigital number, since it uses as much as digits as its factorization.

2444391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90542 (or 90536 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2444391 is about 1563.4548282570. The cubic root of 2444391 is about 134.7070189447.

The spelling of 2444391 in words is "two million, four hundred forty-four thousand, three hundred ninety-one".