2248391 has 4 divisors (see below), whose sum is σ = 2269512. Its totient is φ = 2227272.

The previous prime is 2248381. The next prime is 2248423. The reversal of 2248391 is 1938422.

2248391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2248391 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 (2248331) 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 3 ways as a sum of consecutive naturals, for example, 10400 + ... + 10613.

It is an arithmetic number, because the mean of its divisors is an integer number (567378).

2^2248391 is an apocalyptic number.

2248391 is a deficient number, since it is larger than the sum of its proper divisors (21121).

2248391 is a wasteful number, since it uses less digits than its factorization.

2248391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21120.

The product of its digits is 3456, while the sum is 29.

The square root of 2248391 is about 1499.4635707479. The cubic root of 2248391 is about 131.0058269071.

The spelling of 2248391 in words is "two million, two hundred forty-eight thousand, three hundred ninety-one".