428244824 has 96 divisors (see below), whose sum is σ = 997332480. Its totient is φ = 168761856.

The previous prime is 428244811. The next prime is 428244829. The reversal of 428244824 is 428442824.

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 (428244829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 760367 + ... + 760929.

It is an arithmetic number, because the mean of its divisors is an integer number (10388880).

Almost surely, 2^428244824 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 428244824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498666240).

428244824 is an abundant number, since it is smaller than the sum of its proper divisors (569087656).

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

428244824 is a wasteful number, since it uses less digits than its factorization.

428244824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 636 counting only the distinct ones).

The product of its digits is 131072, while the sum is 38.

The square root of 428244824 is about 20694.0770270143. The cubic root of 428244824 is about 753.7558703719.

The spelling of 428244824 in words is "four hundred twenty-eight million, two hundred forty-four thousand, eight hundred twenty-four".