2242439 has 4 divisors (see below), whose sum is σ = 2260224. Its totient is φ = 2224656.

The previous prime is 2242433. The next prime is 2242441. The reversal of 2242439 is 9342422.

2242439 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-2242439 is a prime.

It is a super-3 number, since 3×2242439³ = 33828533307342151557, which contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242433) 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, 8702 + ... + 8955.

It is an arithmetic number, because the mean of its divisors is an integer number (565056).

2^2242439 is an apocalyptic number.

2242439 is a deficient number, since it is larger than the sum of its proper divisors (17785).

2242439 is a wasteful number, since it uses less digits than its factorization.

2242439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17784.

The product of its digits is 3456, while the sum is 26.

The square root of 2242439 is about 1497.4775457415. The cubic root of 2242439 is about 130.8901240554.

The spelling of 2242439 in words is "two million, two hundred forty-two thousand, four hundred thirty-nine".