428818824 has 96 divisors (see below), whose sum is σ = 1373112000. Its totient is φ = 118290816.

The previous prime is 428818823. The next prime is 428818843.

428818824 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 428818824.

It is not an unprimeable number, because it can be changed into a prime (428818823) 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, 54 + ... + 29285.

It is an arithmetic number, because the mean of its divisors is an integer number (14303250).

Almost surely, 2^428818824 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 428818824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (686556000).

428818824 is an abundant number, since it is smaller than the sum of its proper divisors (944293176).

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

428818824 is a wasteful number, since it uses less digits than its factorization.

428818824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29387 (or 29380 counting only the distinct ones).

The product of its digits is 262144, while the sum is 45.

The square root of 428818824 is about 20707.9410854870. The cubic root of 428818824 is about 754.0924867846.

The spelling of 428818824 in words is "four hundred twenty-eight million, eight hundred eighteen thousand, eight hundred twenty-four".