4242431 has 4 divisors (see below), whose sum is σ = 4248552. Its totient is φ = 4236312.

The previous prime is 4242421. The next prime is 4242437. The reversal of 4242431 is 1342424.

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 4242431 - 2¹⁸ = 3980287 is a prime.

It is a super-2 number, since 2×4242431² = 35996441579522, 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 (4242437) 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, 1865 + ... + 3458.

It is an arithmetic number, because the mean of its divisors is an integer number (1062138).

Almost surely, 2^4242431 is an apocalyptic number.

4242431 is a deficient number, since it is larger than the sum of its proper divisors (6121).

4242431 is an equidigital number, since it uses as much as digits as its factorization.

4242431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120.

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

The square root of 4242431 is about 2059.7162425927. The cubic root of 4242431 is about 161.8843736218.

Adding to 4242431 its reverse (1342424), we get a palindrome (5584855).

The spelling of 4242431 in words is "four million, two hundred forty-two thousand, four hundred thirty-one".