424528506 has 64 divisors (see below), whose sum is σ = 982195200. Its totient is φ = 135753408.

The previous prime is 424528501. The next prime is 424528519. The reversal of 424528506 is 605825424.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (424528501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270135 + ... + 271701.

It is an arithmetic number, because the mean of its divisors is an integer number (15346800).

Almost surely, 2^424528506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424528506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491097600).

424528506 is an abundant number, since it is smaller than the sum of its proper divisors (557666694).

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

424528506 is a wasteful number, since it uses less digits than its factorization.

424528506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780 (or 1774 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 424528506 is about 20604.0895455247. The cubic root of 424528506 is about 751.5691626817.

The spelling of 424528506 in words is "four hundred twenty-four million, five hundred twenty-eight thousand, five hundred six".