424243143 has 32 divisors (see below), whose sum is σ = 669067200. Its totient is φ = 264757248.

The previous prime is 424243121. The next prime is 424243159. The reversal of 424243143 is 341342424.

It is a happy number.

It is not a de Polignac number, because 424243143 - 2¹² = 424239047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424243943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86193 + ... + 90981.

It is an arithmetic number, because the mean of its divisors is an integer number (20908350).

Almost surely, 2^424243143 is an apocalyptic number.

424243143 is a deficient number, since it is larger than the sum of its proper divisors (244824057).

424243143 is a wasteful number, since it uses less digits than its factorization.

424243143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5008 (or 5002 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 424243143 is about 20597.1634697596. The cubic root of 424243143 is about 751.4007263257.

Adding to 424243143 its reverse (341342424), we get a palindrome (765585567).

The spelling of 424243143 in words is "four hundred twenty-four million, two hundred forty-three thousand, one hundred forty-three".