424528668 has 48 divisors (see below), whose sum is σ = 1105628160. Its totient is φ = 140866992.

The previous prime is 424528661. The next prime is 424528691. The reversal of 424528668 is 866825424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424528661) 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, 15271 + ... + 32897.

It is an arithmetic number, because the mean of its divisors is an integer number (23033920).

Almost surely, 2^424528668 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 424528668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (552814080).

424528668 is an abundant number, since it is smaller than the sum of its proper divisors (681099492).

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

424528668 is a wasteful number, since it uses less digits than its factorization.

424528668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17863 (or 17855 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 424528668 is about 20604.0934767827. The cubic root of 424528668 is about 751.5692582812.

The spelling of 424528668 in words is "four hundred twenty-four million, five hundred twenty-eight thousand, six hundred sixty-eight".