4224431 has 4 divisors (see below), whose sum is σ = 4244664. Its totient is φ = 4204200.

The previous prime is 4224427. The next prime is 4224439. The reversal of 4224431 is 1344224.

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 4224431 - 2² = 4224427 is a prime.

It is a super-2 number, since 2×4224431² = 35691634547522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4224439) 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, 9800 + ... + 10221.

It is an arithmetic number, because the mean of its divisors is an integer number (1061166).

Almost surely, 2^4224431 is an apocalyptic number.

4224431 is a deficient number, since it is larger than the sum of its proper divisors (20233).

4224431 is a wasteful number, since it uses less digits than its factorization.

4224431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20232.

The product of its digits is 768, while the sum is 20.

The square root of 4224431 is about 2055.3420639884. The cubic root of 4224431 is about 161.6550986633.

Adding to 4224431 its reverse (1344224), we get a palindrome (5568655).

The spelling of 4224431 in words is "four million, two hundred twenty-four thousand, four hundred thirty-one".