424321552 has 40 divisors (see below), whose sum is σ = 860341760. Its totient is φ = 202487040.

The previous prime is 424321537. The next prime is 424321577. The reversal of 424321552 is 255123424.

It is a self number, because there is not a number n which added to its sum of digits gives 424321552.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30349 + ... + 42067.

It is an arithmetic number, because the mean of its divisors is an integer number (21508544).

Almost surely, 2^424321552 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 424321552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430170880).

424321552 is an abundant number, since it is smaller than the sum of its proper divisors (436020208).

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

424321552 is a wasteful number, since it uses less digits than its factorization.

424321552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11831 (or 11825 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 424321552 is about 20599.0667749779. The cubic root of 424321552 is about 751.4470149939.

Adding to 424321552 its reverse (255123424), we get a palindrome (679444976).

The spelling of 424321552 in words is "four hundred twenty-four million, three hundred twenty-one thousand, five hundred fifty-two".