424143444 has 48 divisors (see below), whose sum is σ = 1025881920. Its totient is φ = 136227840.

The previous prime is 424143413. The next prime is 424143449. The reversal of 424143444 is 444341424.

It is a super-2 number, since 2×424143444² = 359795322176362272, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424143449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233299 + ... + 235109.

It is an arithmetic number, because the mean of its divisors is an integer number (21372540).

Almost surely, 2^424143444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424143444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512940960).

424143444 is an abundant number, since it is smaller than the sum of its proper divisors (601738476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424143444 is a wasteful number, since it uses less digits than its factorization.

424143444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520 (or 2518 counting only the distinct ones).

The product of its digits is 24576, while the sum is 30.

The square root of 424143444 is about 20594.7431156594. The cubic root of 424143444 is about 751.3418608918.

Adding to 424143444 its reverse (444341424), we get a palindrome (868484868).

The spelling of 424143444 in words is "four hundred twenty-four million, one hundred forty-three thousand, four hundred forty-four".