2242447 has 4 divisors (see below), whose sum is σ = 2314816. Its totient is φ = 2170080.

The previous prime is 2242441. The next prime is 2242469. The reversal of 2242447 is 7442422.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2242447 - 2⁷ = 2242319 is a prime.

It is a Duffinian number.

2242447 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36138 + ... + 36199.

It is an arithmetic number, because the mean of its divisors is an integer number (578704).

2^2242447 is an apocalyptic number.

2242447 is a deficient number, since it is larger than the sum of its proper divisors (72369).

2242447 is an equidigital number, since it uses as much as digits as its factorization.

2242447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72368.

The product of its digits is 3584, while the sum is 25.

The square root of 2242447 is about 1497.4802168977. The cubic root of 2242447 is about 130.8902797074.

Subtracting from 2242447 its sum of digits (25), we obtain a palindrome (2242422).

Adding to 2242447 its reverse (7442422), we get a palindrome (9684869).

The spelling of 2242447 in words is "two million, two hundred forty-two thousand, four hundred forty-seven".