424401143144 has 96 divisors (see below), whose sum is σ = 884485580160. Its totient is φ = 190750412160.

The previous prime is 424401143137. The next prime is 424401143183. The reversal of 424401143144 is 441341104424.

It is a self number, because there is not a number n which added to its sum of digits gives 424401143144.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75473117 + ... + 75478739.

It is an arithmetic number, because the mean of its divisors is an integer number (9213391460).

Almost surely, 2^424401143144 is an apocalyptic number.

424401143144 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424401143144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442242790080).

424401143144 is an abundant number, since it is smaller than the sum of its proper divisors (460084437016).

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

424401143144 is a wasteful number, since it uses less digits than its factorization.

424401143144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6511 (or 6496 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 424401143144 its reverse (441341104424), we get a palindrome (865742247568).

The spelling of 424401143144 in words is "four hundred twenty-four billion, four hundred one million, one hundred forty-three thousand, one hundred forty-four".