2244391 has 12 divisors (see below), whose sum is σ = 2473632. Its totient is φ = 2028416.

The previous prime is 2244377. The next prime is 2244401. The reversal of 2244391 is 1934422.

It is not a de Polignac number, because 2244391 - 2¹¹ = 2242343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42321 + ... + 42373.

It is an arithmetic number, because the mean of its divisors is an integer number (206136).

2^2244391 is an apocalyptic number.

2244391 is the 948-th centered pentagonal number.

2244391 is a deficient number, since it is larger than the sum of its proper divisors (229241).

2244391 is an equidigital number, since it uses as much as digits as its factorization.

2244391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 117 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 2244391 is about 1498.1291666609. The cubic root of 2244391 is about 130.9280921522.

The spelling of 2244391 in words is "two million, two hundred forty-four thousand, three hundred ninety-one".